Wire-to-board pin header connector

Abstract

The utility model discloses a wire-to-board pin header connector, comprising a female seat which comprises a plastic seat and a first terminal; the male head comprises an insulating seat and a second terminal, the second terminal is provided with a plug-in clamping opening, the upper side and the lower side of the second terminal are provided with elastic sheets, and the end parts of the elastic sheets extend into the plug-in clamping opening; elastic arms are arranged on the left side and the right side of the second terminal, each elastic arm is provided with a guide connection protruding part protruding from outside to inside, and the guide connection protruding parts extend into the opposite insertion clamping openings; the first terminal is inserted into the plug-in clamping opening of the second terminal, the end portions of the two elastic sheets abut against the upper side face and the lower side face of the first terminal respectively, and the guide connection protruding portions of the two elastic arms abut against the left side face and the right side face of the first terminal respectively, so that the second terminal wraps and clamps the periphery of the first terminal. According to the utility model, not only can the second terminal be ensured not to shake after being inserted into the plug-in clamping opening of the first terminal, but also the contact area of the second terminal and the first terminal can be increased, the stability of conductive connection is ensured, and the hidden danger that the second terminal cannot be contacted is avoided, thereby meeting the requirement of product contact function.

Description

TECHNICAL FIELD

[0001] The utility model relates to connector product technical field, especially a line-to-board pin connector. BACKGROUND

[0002] The main supporting fields of the connector include new energy, automobile, transportation, communication, network, IT, medical treatment, home appliance, military electronic product etc., the rapid development of the supporting field product technical level and the rapid growth of its market strongly pull the development of the connector technology.

[0003] At present, the pin connector can not only constitute board-to-board connection, but also can constitute board-to-line connection to meet different use requirements.

[0004] The pin connector generally also includes a female seat and a male head, the female seat includes a plastic seat and a plurality of first terminals fixed in the plastic seat by insertion, and the male head includes an insulating seat and a plurality of second terminals fixed in the insulating seat by insertion, the plastic seat and the insulating seat are positioned after the female seat and the male head are inserted, the first terminals are inserted into the insertion clamping port of the second terminals, and electrical conduction is formed.

[0005] The assembly structure of the first terminal and the second terminal is shown in the figure, the second terminal 101 has an insertion clamping port 102 at the front end, the upper and lower sides of the second terminal 101 are provided with elastic sheets 103, the first terminal 104 is inserted into the insertion clamping port 102, the elastic sheets 103 are extruded outward to drive the elastic sheets 103 to move outward, the elastic sheets 103 generate elastic force from outside to inside to clamp the upper and lower surfaces of the first terminal 104, and the second terminal 101 is connected with the first terminal 104. Fig. 1-2 However, since the left and right sides of the first terminal 104 are not limited by structure, gaps are formed between the left and right sides of the first terminal 104 and the inner walls of the left and right sides of the insertion clamping port 102, which causes the first terminal 104 and the second terminal 101 to shake in the left and right directions during insertion, and the contact area of the first terminal 104 and the second terminal 101 is too small, which also has the risk of not being able to contact, resulting in poor contact of the first terminal 104 and the second terminal 101 during insertion, and the product cannot meet the contact function requirements.

[0006] Therefore, the inventors propose the following technical scheme.

[0007] UTILITY MODEL CONTENTS UTILITY MODEL CONTENTS

[0008] The utility model aims at overcoming the defects of the prior art, and provides a line-to-board pin connector.

[0009] In order to solve the above technical problems, the utility model adopts the following technical scheme: the line-to-board pin connector includes: a female seat, which includes a plastic seat and a plurality of first terminals fixed in the plastic seat; a male head, which includes an insulating seat matched with the plastic seat and a plurality of second terminals fixed in the insulating seat, the second terminal is provided with a plug-in clamping opening for the first terminal, and the second terminal is provided with a spring piece on the upper and lower sides, and the spring piece end extends into the plug-in clamping opening; the left and right sides of the second terminal are provided with a spring arm, the spring arm is provided with a guide connection convex part which is convex from outside to inside, and the guide connection convex part extends into the plug-in clamping opening; the first terminal is inserted into the plug-in clamping opening of the second terminal, and the end of the two spring pieces respectively presses the upper and lower sides of the first terminal, and the guide connection convex part of the two spring arms respectively presses the left and right sides of the first terminal.

[0010] Further, in the above technical scheme, the inner side of the guide connection convex part is provided with an arc convex surface.

[0011] Further, in the above technical scheme, the spring arm is V-shaped, which includes a first arm body and a second arm body which are inclinedly distributed and the guide connection convex part integrally connected between the first arm body and the second arm body, the front end of the first arm body and the rear end of the second arm body are integrally connected with the second terminal, and the first arm bodies of the two spring arms form a guide space which is gradually reduced between them.

[0012] Further, in the above technical scheme, the front end of the spring piece is integrally connected with the second terminal and is inclinedly distributed in the direction opposite to the opening of the plug-in clamping opening, the rear end of the spring piece is a free end, and the rear end of the spring piece is further bent to form a pressing part which is raised from outside to inside, and the pressing part extends into the plug-in clamping opening.

[0013] Further, in the above technical scheme, the pressing part is located in front of the guide connection convex part.

[0014] Further, in the above technical scheme, the cross section of the first terminal is rectangular, the cross section of the plug-in clamping opening is also rectangular, and the size of the cross section of the plug-in clamping opening is greater than the size of the cross section of the first terminal.

[0015] Further, in the above technical scheme, the front end of the plastic seat is provided with a plug-in slot for the male head, and the inner wall of the plug-in slot is further provided with a lock opening; the insulating seat has a plug-in part matched with the plug-in slot, and the plug-in part is formed with a lock catch matched with the lock opening, and the lock catch is provided with a guide inclined surface.

[0016] Further, in the above technical solution, the first terminal left and right sides are formed with first and second positioning protrusions in opposite distribution and in a spread-eagle shape by stamping and tearing, and the outer sides of the first and second positioning protrusions are inclined surfaces; the plastic seat is provided with a first terminal hole along the rear end, and the first terminal is inserted into the first terminal hole, and the outer sides of the first and second positioning protrusions are clamped and positioned with the inner wall of the first terminal hole.

[0017] Further, in the above technical solution, the first terminal left and right sides are formed with first and second positioning protrusions in opposite distribution and in a spread-eagle shape by stamping and tearing, and the outer sides of the first and second positioning protrusions are inclined surfaces; the plastic seat is provided with a first terminal hole along the rear end, and the first terminal is inserted into the first terminal hole, and the outer sides of the first and second positioning protrusions are clamped and positioned with the inner wall of the first terminal hole.

[0018] Further, in the above technical solution, the first terminal left and right sides are formed with first and second positioning protrusions in opposite distribution and in a spread-eagle shape by stamping and tearing, and the outer sides of the first and second positioning protrusions are inclined surfaces; the plastic seat is provided with a first terminal hole along the rear end, and the first terminal is inserted into the first terminal hole, and the outer sides of the first and second positioning protrusions are clamped and positioned with the inner wall of the first terminal hole.

[0019] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art: on the basis of the second terminal being provided with elastic sheets on the upper and lower sides, the second terminal is also provided with elastic arms on the left and right sides, so that the second terminal is clamped around the first terminal inserted into the insertion clamping opening through the two elastic arms and the two elastic sheets. This not only ensures that the second terminal will not shake after being inserted into the insertion clamping opening of the first terminal, but also increases the contact area of the second terminal and the first terminal, ensures the stability of the connection, eliminates the hidden danger of being unable to contact, and thus meets the contact function requirements of the product. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is an assembly structure diagram of the first terminal and the second terminal of the row pin connector in the prior art;

[0021] Fig. 2 is Fig. 1 is a sectional view along A-A;

[0022] Fig. 3 is a perspective view of the utility model;

[0023] Fig. 4 is a perspective view of the male head in the utility model;

[0024] Fig. 5 is a perspective exploded view of the male head in the utility model;

[0025] Fig. 6 is another perspective view of the male head in the utility model;

[0026] Fig. 7 is a perspective view of the second terminal in the utility model;

[0027] Fig. 8 is another perspective view of the second terminal in the utility model;

[0028] Fig. 9 is a perspective view of the female seat in the utility model;

[0029] Fig. 10 is an exploded view of the female seat in the utility model;

[0030] Fig. 11 is another perspective view of the female seat in the utility model;

[0031] Fig. 12 is a perspective view of the first terminal in the utility model;

[0032] Fig. 13 is an assembly view of the first terminal and the second terminal in the utility model;

[0033] Fig. 14 is an assembly sectional view of the first terminal and the second terminal in the utility model;

[0034] Fig. 15 is another assembly sectional view of the first terminal and the second terminal in the utility model;

[0035] Fig. 16 is a sectional view of the second terminal in the utility model.

[0036] Explanation of reference signs:

[0037] second terminal 101, plug-in clamping opening 102, spring plate 103

[0038] first terminal 104, female seat 200, plastic seat 2

[0039] plug-in slot 21, lock opening 211, first terminal hole 22

[0040] first terminal 3, first positioning convex part 31, second positioning convex part 32

[0041] male head 400, insulating seat 4, plug-in part 41

[0042] plug hole 410, lock catch 411, guide inclined surface 412

[0043] plug opening 42, inverted catch 43, elastic arm 44

[0044] groove 441, lock block 45, catch groove 46

[0045] Second terminal 5, mating clip 50, spring clip 51

[0046] Resisting part 511 Elastic arm 52 Guide protruding part 521

[0047] First arm body 522 Second arm body 523 Positioning groove 53 Detailed implementation method:

[0048] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0049] See Figs. 3-16 As shown, a wire-to-board pin header connector includes a female connector 200 and a male connector 400 that are mutually adapted to each other. After the male connector 400 is inserted into the female connector 200, electrical conduction is formed.

[0050] Combination Figs. 4-6 As shown, the female connector 200 includes a plastic base 2 and a plurality of first terminals 3 fixed in the plastic base 2; correspondingly, combined with Figs. 9-11 As shown, the male connector 400 includes an insulating base 4 adapted to the plastic base 2 and a plurality of second terminals 5 fixed in the insulating base 4. The second terminal 5 is provided with a mating clip 50 for the first terminal 3 to be inserted, and the upper and lower sides of the second terminal 5 are provided with spring pieces 51, the ends of which extend into the mating clip 50.

[0051] The main improvements made in this utility model are as follows: (combination) Figs. 7-8 As shown in Figures 13-15, spring arms 52 are provided on both the left and right sides of the second terminal 5. Each spring arm 52 has a guide protrusion 521 that protrudes from the outside to the inside and extends into the mating clamp 50. The first terminal 3 is inserted into the mating clamp 50 of the second terminal 5. The ends of the two spring pieces 51 press against the upper and lower sides of the first terminal 3, respectively. The guide protrusions 521 of the two spring arms 52 press against the left and right sides of the first terminal 3, respectively. This allows the second terminal 5 to be clamped around the first terminal 3 inserted into the mating clamp 50 by the two spring arms 52 and the two spring pieces 51. This not only ensures that the second terminal 5 will not wobble after being inserted into the mating clamp 50 of the first terminal 3, but also increases the contact area between the second terminal 5 and the first terminal 3, ensuring the stability of the connection and eliminating the risk of non-contact, thereby meeting the product's contact function requirements.

[0052] Combination Figs. 9-12 As shown, the first terminal 3 has a rectangular cross-section, meaning it is a square pin. The mating clip 50 also has a rectangular cross-section, and its dimensions are larger than those of the first terminal 3, allowing the first terminal 3 to be smoothly inserted into the mating clip 50, thus improving insertion efficiency and smoothness.

[0053] Combination Fig. 12 As shown in the drawings, the first terminal 3 is formed with first positioning protrusions 31 and second positioning protrusions 32 on both left and right sides by stamping and tearing, which are oppositely distributed and in a spread-eagle shape. That is, the left side of the first terminal 3 is formed with first positioning protrusions 31 and second positioning protrusions 32 on both left and right sides by stamping and tearing, which are oppositely distributed and in a spread-eagle shape. The right side of the first terminal 3 is also formed with first positioning protrusions 31 and second positioning protrusions 32 on both left and right sides by stamping and tearing, which are oppositely distributed and in a spread-eagle shape. The outer sides of the first positioning protrusions 31 and the second positioning protrusions 32 are inclined surfaces. The plastic seat 2 is provided with a first terminal hole 22 at the front end thereof. The first terminal 3 is inserted into the first terminal hole 22. Since the outer sides of the first positioning protrusions 31 and the second positioning protrusions 32 are inclined surfaces, the first positioning protrusions 31 and the second positioning protrusions 32 are pressed into the first terminal hole 22, and the contact between the first positioning protrusions 31 and the second positioning protrusions 32 and the inner wall of the first terminal hole 22 becomes tighter and tighter. Thus, the outer sides of the first positioning protrusions 31 and the second positioning protrusions 32 are clamped and positioned with the inner wall of the first terminal hole 22, thereby ensuring that the first terminal 3 is stably installed in the plastic seat 2, and the stability is extremely reliable.

[0054] Combination Figs. 7-8 As shown in the drawings, the elastic sheet 51 is integrally connected with the second terminal 5 at the front end thereof and is inclinedly distributed in the direction opposite to the opening of the plug-in clamping port 50. The rear end of the elastic sheet 51 is a free end, and the rear end of the elastic sheet 51 is further bent to form a pressure portion 511 which is raised from outside to inside. The pressure portion 511 extends into the plug-in clamping port 50, and the pressure portion 511 is used to contact the upper side or the lower side of the first terminal 3. Since the elastic sheet 51 is inclinedly distributed in the direction opposite to the opening of the plug-in clamping port 50, the elastic sheet 51 can guide the first terminal 3 to be inserted into the plug-in clamping port 50 of the second terminal 5. During the insertion of the first terminal 3 into the plug-in clamping port 50 of the second terminal 5, the first terminal 3 first contacts the inclined surface (not the pressure portion 511) of the second terminal 5, which can guide the first terminal 3 to be centered, thereby avoiding the insertion of the first terminal 3 to be skewed. When the upper side or the lower side of the first terminal 3 passes the pressure portion 511, the elastic sheet 51 is extruded outwardly, and the elastic sheet 51 generates a reverse elastic force (i.e. an elastic force from outside to inside), so that the pressure portion 511 is pressed against the upper side or the lower side of the first terminal 3. That is, the pressure portions 511 at the ends of the two elastic sheets 51 are pressed against the upper side and the lower side of the first terminal 3, respectively.

[0055] Combination Fig. 16As shown, the spring arm 52 is V-shaped and includes a first arm body 522 and a second arm body 523 that are inclined to each other, and a guide protrusion 521 integrally connected between the first arm body 522 and the second arm body 523. The front end of the first arm body 522 and the rear end of the second arm body 523 are integrally connected to the second terminal 5. The connection is stable and has high elastic strength. A guide space that decreases in size is formed between the first arm bodies 522 of the two spring arms 52, which can also produce a better guiding effect. That is, when the first terminal 3 is inserted into the mating clamp 50 of the second terminal 5, it is guided by the guide space, which can make the first terminal 3 centered when inserted, so that it can be pressed and contacted by the two spring pieces 51 and the two spring arms 52, ensuring the correct position and clamping strength, and making the connection stable.

[0056] The spring arm 52 is formed from the side of the second terminal 5 by a stamping and tearing method, and both ends of the spring arm 52 are integrally connected to the second terminal 5.

[0057] In some embodiments, the spring arm 52 can also be configured with the same structure as the spring piece 51, that is, the front end of the spring arm 52 is integrally connected to the second terminal 5 and is inclined in the opposite direction to the opening of the interlocking clip 50. The rear end of the spring arm 52 is a free end, and the rear end of the spring arm 52 is also bent to form the guide protrusion 521 that bulges from the outside to the inside. It can also elastically press against the left and right sides of the first terminal 3 to ensure that the first terminal 3 will not shake after being inserted into the interlocking clip 50 of the second terminal 5. At the same time, it can also increase the contact area between the second terminal 5 and the first terminal 3, ensure the stability of the connection, eliminate the hidden danger of non-contact, and thus meet the product contact function requirements.

[0058] Combination Fig. 16 As shown, the inner side of the guide protrusion 521 is an arc-shaped convex surface, which allows the left or right side of the first terminal 3 to pass smoothly over the guide protrusion 521 and be elastically pressed by the guide protrusion 521, which can effectively improve the smoothness of insertion.

[0059] Combination Fig. 16 As shown, the pressing part 511 is located in front of the guiding protrusion 521. That is, the pressing part 511 of the two spring pieces 51 first clamps the upper and lower sides of the positioning first terminal 3, and then the guiding protrusion 521 of the two spring arms 52 clamps the left and right sides of the positioning first terminal 3 in the left and right direction, realizing a clamping method of front and back, which makes the clamping more stable.

[0060] The interlocking structure between the plastic base 2 and the insulating base 4 is as follows:

[0061] Combination Figs. 3-6As shown in Figs. 9-11, the plastic seat 2 is provided with a pair of insertion slots 21 at the front end for inserting the male head 400, and the inner wall of the pair of insertion slots 21 is further provided with a locking opening 211. The insulating seat 4 is provided with a pair of insertion portions 41 which are adapted to the pair of insertion slots 21, and the pair of insertion portions 41 are formed with a locking buckle 411 which is adapted to the locking opening 211, and the locking buckle 411 is provided with a guide inclined surface 412. The first terminal 3 is exposed in the pair of insertion slots 21, and the pair of insertion portions 41 are provided with an insertion hole 410 at the front end, which corresponds to the pair of insertion clamping openings 50 of the second terminal 5, i.e. when the front end of the first terminal 3 passes through the insertion hole 410, it can be smoothly inserted into the pair of insertion clamping openings 50 of the second terminal 5. That is, when the male head 400 is inserted into the female seat 200, the pair of insertion portions 41 of the insulating seat 4 are inserted into the pair of insertion slots 21 at the front end of the plastic seat 2, and when the front end of the first terminal 3 passes through the insertion hole 410, it can be smoothly inserted into the pair of insertion clamping openings 50 of the second terminal 5 to form a guide connection. In this process, the guide inclined surface 412 of the locking buckle 411 in the pair of insertion portions 41 is in contact with the inner wall of the pair of insertion slots 21 and enters the locking opening 211, so that the locking buckle 411 and the locking opening 211 are positioned and locked, achieving the purpose of locking, preventing the male head 400 from being accidentally separated from the female seat 200, ensuring the stability of the guide connection, and avoiding the problem of accidental disconnection.

[0062] In combination Figs. 4-6 As shown in Figs. 9-11, the plastic seat 2 is provided with a pair of insertion slots 21 at the front end for inserting the male head 400, and the inner wall of the pair of insertion slots 21 is further provided with a locking opening 211. The insulating seat 4 is provided with a pair of insertion portions 41 which are adapted to the pair of insertion slots 21, and the pair of insertion portions 41 are formed with a locking buckle 411 which is adapted to the locking opening 211, and the locking buckle 411 is provided with a guide inclined surface 412. The first terminal 3 is exposed in the pair of insertion slots 21, and the pair of insertion portions 41 are provided with an insertion hole 410 at the front end, which corresponds to the pair of insertion clamping openings 50 of the second terminal 5, i.e. when the front end of the first terminal 3 passes through the insertion hole 410, it can be smoothly inserted into the pair of insertion clamping openings 50 of the second terminal 5. That is, when the male head 400 is inserted into the female seat 200, the pair of insertion portions 41 of the insulating seat 4 are inserted into the pair of insertion slots 21 at the front end of the plastic seat 2, and when the front end of the first terminal 3 passes through the insertion hole 410, it can be smoothly inserted into the pair of insertion clamping openings 50 of the second terminal 5 to form a guide connection. In this process, the guide inclined surface 412 of the locking buckle 411 in the pair of insertion portions 41 is in contact with the inner wall of the pair of insertion slots 21 and enters the locking opening 211, so that the locking buckle 411 and the locking opening 211 are positioned and locked, achieving the purpose of locking, preventing the male head 400 from being accidentally separated from the female seat 200, ensuring the stability of the guide connection, and avoiding the problem of accidental disconnection.

[0063] In combination Figs. 4-6 As shown in Figs. 9-11, the plastic seat 2 is provided with a pair of insertion slots 21 at the front end for inserting the male head 400, and the inner wall of the pair of insertion slots 21 is further provided with a locking opening 211. The insulating seat 4 is provided with a pair of insertion portions 41 which are adapted to the pair of insertion slots 21, and the pair of insertion portions 41 are formed with a locking buckle 411 which is adapted to the locking opening 211, and the locking buckle 411 is provided with a guide inclined surface 412. The first terminal 3 is exposed in the pair of insertion slots 21, and the pair of insertion portions 41 are provided with an insertion hole 410 at the front end, which corresponds to the pair of insertion clamping openings 50 of the second terminal 5, i.e. when the front end of the first terminal 3 passes through the insertion hole 410, it can be smoothly inserted into the pair of insertion clamping openings 50 of the second terminal 5. That is, when the male head 400 is inserted into the female seat 200, the pair of insertion portions 41 of the insulating seat 4 are inserted into the pair of insertion slots 21 at the front end of the plastic seat 2, and when the front end of the first terminal 3 passes through the insertion hole 410, it can be smoothly inserted into the pair of insertion clamping openings 50 of the second terminal 5 to form a guide connection. In this process, the guide inclined surface 412 of the locking buckle 411 in the pair of insertion portions 41 is in contact with the inner wall of the pair of insertion slots 21 and enters the locking opening 211, so that the locking buckle 411 and the locking opening 211 are positioned and locked, achieving the purpose of locking, preventing the male head 400 from being accidentally separated from the female seat 200, ensuring the stability of the guide connection, and avoiding the problem of accidental disconnection.

[0064] In summary, the utility model discloses on the basis that the spring piece 51 is arranged on the upside and downside of second terminal 5, and the spring arm 52 is arranged on the left and right sides of second terminal 5, so that the second terminal 5 is clamped around the first terminal 3 inserted into the plug-in opposite plug clamping mouth 50 through two spring arms 52 and two spring pieces 51, which can not only guarantee that the second terminal 5 does not shake after being inserted into the opposite plug clamping mouth 50 of the first terminal 3, but also can increase the contact area of the second terminal 5 and the first terminal 3, guarantee the stability of the lead connection, eliminate the hidden danger of unable to contact, so as to meet the product contact function requirement.

[0065] Of course, the above only for the specific embodiments of the utility model, and not to limit the utility model implementation range, all equivalent changes or modifications made according to the structure, features and principles of the utility model patent application scope described in the utility model patent application scope should be included.

Claims

1. A wire-to-board ribbon connector, comprising: a female seat comprising a plastic seat and a plurality of first terminals fixed in the plastic seat; a male head comprising an insulating seat adapted to the plastic seat and a plurality of second terminals fixed in the insulating seat, the second terminals being provided with a clamping opening for the first terminals to be inserted into, and the second terminals being provided with spring sheets on both upper and lower sides, the spring sheets having end portions extending into the clamping opening; characterized in that the second terminals are provided with spring arms on both left and right sides, the spring arms being provided with guide and connecting protrusions protruding from outside to inside, the guide and connecting protrusions extending into the clamping opening; the first terminals being inserted into the clamping opening of the second terminals, the end portions of the two spring sheets pressing against upper and lower sides of the first terminals respectively, and the guide and connecting protrusions of the two spring arms pressing against left and right sides of the first terminals respectively.

2. The line-to-board array needle connector of claim 1, wherein: The inner side of the guide and connecting protrusion is provided with an arc-shaped convex surface.

3. The line-to-board array needle connector of claim 1, wherein: The spring arm is in a V shape, comprising a first arm body and a second arm body which are inclined to each other, and the guide and connecting protrusion which is integrally connected between the first arm body and the second arm body, the front end of the first arm body and the rear end of the second arm body are integrally connected with the second terminal, and a guide space which becomes smaller from large is formed between the first arm bodies of the two spring arms.

4. The line-to-board array needle connector of claim 1, wherein: The front end of the spring sheet is integrally connected with the second terminal and is inclined to distribute in a direction opposite to the opening of the clamping opening, the rear end of the spring sheet is a free end, and the rear end of the spring sheet is further bent to form a pressing portion which protrudes from outside to inside, the pressing portion extends into the clamping opening.

5. The line-to-board array needle connector of claim 4, wherein: The pressing portion is located in front of the guide and connecting protrusion.

6. The line-to-board array needle connector of claim 1, wherein: The cross section of the first terminal is in a rectangular shape, the cross section of the clamping opening is also in a rectangular shape, and the size of the cross section of the clamping opening is larger than the size of the cross section of the first terminal.

7. The connector according to any one of claims 1 to 6, wherein: The front end of the plastic seat is provided with a clamping groove for the male head to be inserted into, and the inner wall of the clamping groove is further provided with a locking opening which is opened outwardly; the insulating seat has a clamping portion which is adapted to the clamping groove, the clamping portion is formed with a lock catch which is adapted to the locking opening, and the lock catch is provided with a guide inclined surface.

8. The connector according to any one of claims 1 to 6, wherein: The left and right sides of the first terminal are both formed with a first positioning protrusion and a second positioning protrusion which are oppositely distributed and in a spread-eagle shape by stamping and tearing, the outer side of the first positioning protrusion and the second positioning protrusion is an inclined surface; the plastic seat is provided with a first terminal hole which is opened forwardly along the rear end, the first terminal is inserted into the first terminal hole, and the outer side of the first positioning protrusion and the second positioning protrusion is clamped and positioned with the inner wall of the first terminal hole.

9. The connector according to any one of claims 1 to 6, wherein: The insulating seat is provided with a clamping opening which is opened downwardly along the upper end surface, the inner wall of the clamping opening is provided with a reverse catch, and the positioning groove on the second terminal is exposed in the clamping opening; the insulating seat is provided with a resilient arm, the end of the resilient arm is provided with a lock block and a catch groove which is located on the inner side of the lock block, after the resilient arm is pressed down, the lock block passes through the clamping opening from outside to inside and is pressed into the positioning groove of the second terminal, and the catch groove is positioned with the reverse catch after the lock block passes through the reverse catch, so that the lock block is clamped in the positioning groove to prevent the second terminal from moving.

10. The line-to-board array needle connector of claim 9, wherein: The resilient arm is two, which are distributed on both sides of the insulating seat, and the end of the two resilient arms is integrally connected with the lock block; the inner side of the resilient arm is provided with a groove which reduces the wall thickness.

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