Electrical connector

Abstract

The utility model discloses a kind of electric connectors, including shell and the lock catch structure extended from shell, install with the position assurance member between shell and lock catch structure, lock catch structure includes two arm parts and the through slot between two arm parts, the rear end of through slot is equipped with rear stop, lock catch part is protruded upward from arm part, from shell protrudes stop position protruding, position assurance member includes a base, from the extension of base, from the upper surface of extension is protruded anti-retreating protruding upward, from the end of extension extends stop position arm forward, when position assurance member is located in pre-lock position, anti-retreating protruding is housed in through slot and is stopped by rear stop, position assurance member is received in space of lock catch structure reasonably, stop position surface of stop position arm is stopped by the rear end of stop position protruding to prevent position assurance member from pre-lock position moving forward, avoid directly using lock catch part to stop stop position surface, ensure the structural strength of lock catch part.

Description

[Technical Field]

[0001] This utility model relates to an electrical connector, and more particularly to an electrical connector with a position guarantee element. [Background Technology]

[0002] An existing electrical connector includes a housing with an elastic locking arm extending from the outer surface of the housing. The locking arm has a locking portion. When the electrical connector is plugged into a mating connector, the locking portion engages with the engaging portion of the mating connector. Pressing the locking arm can disengage the locking portion from the engaging portion to unlock the connector. The electrical connector and the mating connector can be separated. A position guarantee is installed below the locking arm to prevent the locking portion from accidentally unlocking from the engaging portion. The position guarantee has a stop arm with a stop surface. The stop arm cooperates with the locking portion to prevent the position guarantee from moving forward from the pre-locked position to the final locked position. When the two connectors are plugged in, the mating connector actuates the stop arm to move downward, and the locking portion no longer blocks the stop portion. The stop portion can move from the pre-locked position to the final locked position and be accommodated in a recessed relief groove on the lower side of the locking portion.

[0003] If the two connectors tend to separate after the connectors are mated, the locking part is used to block the engaging part and is subjected to the force applied by the engaging part. However, in existing connectors, the lower side of the locking part has a relief groove, which reduces the strength of the locking part and makes it easy to be pulled and broken. In addition, when the position guarantee is in the pre-locked position, the locking part blocks the forward displacement of the stop part, and the stop part will also exert a pushing force on the locking part. This makes the weak engaging part easily damaged or even broken by repeated stress, reducing the life of the engaging part and affecting the locking function of the electrical connector.

[0004] Therefore, it is necessary to design an improved electrical connector to solve the above-mentioned technical problems. [Utility Model Content]

[0005] To address the problems in the background technology, the purpose of this utility model is to provide an electrical connector that has a stop protrusion on the housing corresponding to a stop position guaranteeing member, thereby ensuring the structural strength of the locking part, and has an anti-retraction protrusion of the guaranteeing member in the through groove of the locking structure to make reasonable use of space.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an electrical connector for mating with a mating connector, comprising: a housing, a locking structure extending from the housing, the locking structure including two arms extending in a front-rear direction and a through groove located between the two arms, a rear stop portion provided at the rear end of the through groove, at least one arm having an upwardly protruding locking portion for engaging with the engaging portion of the mating connector, and a stop protrusion protruding from the surface of the housing facing the locking arm; a position guarantee member installed on the housing and movable relative to the housing between a pre-locked position and a final-locked position, the position guarantee member including a base, a stop portion protruding upward from the base, and an extension portion extending forward from the base. An anti-retraction protrusion is provided on the upper surface of the extension, which is received in a through groove. At least one elastic stop arm extends forward from the end of the extension, and the stop arm has a stop surface. When the position guarantee is in the pre-locked position, the stop part and the locking structure are vertically offset, the anti-retraction protrusion is stopped by the rear stop part, and the stop surface is stopped by the rear end of the stop protrusion to prevent the position guarantee from moving forward from the pre-locked position. When the electrical connector is plugged into the mating connector, the stop arm is actuated by the mating connector and deforms in the left-right direction. The stop surface disengages from the stop protrusion to allow the position guarantee to move forward to the final lock position. When the position guarantee is in the final lock position, the stop part is located on the lower side of the locking structure to prevent the locking structure from deforming downward.

[0007] Furthermore, the locking structure also includes a pressing part connecting the rear ends of the two arms. One end of the rear stop connects the two inner sides of the two arms, and the other end is connected to the pressing part. The locking part protrudes upward from each arm. When the position guarantee is in the final lock position, the stop is located below the pressing part, and the anti-reverse protrusion is located between the two locking parts in the left-right direction.

[0008] Furthermore, the thickness of the anti-recoil protrusion gradually increases from top to bottom along the front-to-back direction, the front end face of the anti-recoil protrusion extends backward at an angle from bottom to top, and the front end face of the anti-recoil protrusion is connected to the top surface in an arc transition.

[0009] Furthermore, the angle between the stop surface facing forward and the front-back direction is less than 90 degrees, and the rear end of the stop protrusion is provided with an inclined baffle corresponding to the stop surface, the inclined baffle being parallel to the stop surface.

[0010] Furthermore, a protrusion is provided on one side of the end of the stop arm along the left and right direction. The bottom of the front end of the protrusion has a recess and a stop surface is formed in the recess. The top of the front end of the protrusion is provided on one side of the left and right direction with an unlocking surface that extends obliquely from front to back. The front end of the unlocking surface is further forward than the front end of the stop surface. When the position guarantee is in the pre-locked position, the unlocking surface is above the stop protrusion.

[0011] Furthermore, two stop arms extend forward from the end of the extension portion, and the two stop arms protrude towards each other to form two protrusions. The stop protrusions are located between the two stop arms and stop in front of the two stop surfaces. The through groove extends forward through the front end of the locking arm to form an unlocking path extending in the front-rear direction between the surface of the housing and the two arms. The unlocking path is used for the insertion of the actuation rib of the mating connector. The two unlocking surfaces are located on the unlocking path and are abutted by the left and right sides of the actuation rib.

[0012] Furthermore, two stop arms extend forward from the end of the extension portion, with two stop surfaces located inside the two stop arms. Two side arms extend forward from the base and are located outside the two stop arms respectively. Each side arm has a final locking point on one outer side in the left-right direction. The housing has a final locking engagement part corresponding to each side arm in the left-right direction. When the position guarantee member is in the final locking position, the final locking point engages with the final locking engagement part to prevent the position guarantee member from retracting.

[0013] Furthermore, a limiting part is provided at the end of the stop arm and the end of the side arm facing each other, and the limiting part of the stop arm and the limiting part of the side arm abut against each other when the stop arm deforms in the left and right direction.

[0014] Furthermore, when the position guarantee component is in the pre-locked position, the stop arm is located on the lower side of the latch, and the thickness of the stop arm in the vertical direction is less than the thickness of the side arm in the vertical direction.

[0015] Furthermore, each arm has an upwardly protruding locking part, the through groove extends in the front-to-back direction and has a first section and a second section, the width of the first section in the left-to-right direction is greater than that of the second section, the stop protrusion and part of the stop arm protrude upwards from the first section, the width of the first section is greater than that of the stop protrusion, and the second section is located between the two locking parts.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By providing a stop protrusion on the housing to stop the stop arm of the position guarantee component, the locking part is prevented from being directly stopped by the stop arm, thus avoiding the force exerted by the stop arm on the locking part. Furthermore, there is no need to create a slot at the locking part to accommodate the stop arm, resulting in a complete and robust protrusion structure for the locking part to ensure its structural strength. The anti-retraction protrusion is correspondingly housed within a through groove, making efficient use of space to house the position guarantee component. The anti-retraction protrusion does not additionally occupy space for downward deformation of the locking structure, thereby avoiding increasing the height of the locking structure and facilitating the miniaturization of the electrical connector. Moreover, the anti-retraction protrusion is located within the through groove, which is positioned on one side of the locking part in the left-right direction, thus aligning with the locking part in the front-back direction. The staggered design prevents the anti-reverse protrusion from interfering with the locking part, thus avoiding wear on the locking part caused by the back-and-forth movement of the position guarantee component. This ensures the structural strength of the locking part. The anti-reverse protrusion of the position guarantee component is located on the extension, while the stop surface and unlocking surface are located on the stop arm. This separates the anti-reverse function from the stop unlocking function. On the one hand, this allows the stop arm to be made longer and thinner than the extension, providing better elasticity so that the stop surface can engage or disengage with the stop protrusion under elastic action. On the other hand, the deformation of the stop arm in the left-right direction will not cause the anti-reverse protrusion to come out of the through groove in the up-down direction, thereby ensuring that the position guarantee component will not come out of the housing in the pre-locked position. [Attached Image Description]

[0018] Figure 1 This is a three-dimensional assembly diagram of the electrical connector of this utility model;

[0019] Figure 2 This is an exploded perspective view of the electrical connector of this utility model;

[0020] Figure 3 This is a front view of the electrical connector of this utility model, in which the position guarantee is in the pre-locked position;

[0021] Figure 4 for Figure 3 A cross-sectional view along the AA direction;

[0022] Figure 5 for Figure 4 An enlarged view of region D within the circle;

[0023] Figure 6 for Figure 3 A sectional view along the CC direction;

[0024] Figure 7 This is a three-dimensional schematic diagram of the electrical connector and the mating connector of this utility model;

[0025] Figure 8 For along Figure 3 A cross-sectional view of the BB-direction electrical connector during the mating process with the docking connector, at which point the position guarantee is in the pre-locked position;

[0026] Figure 9 For along Figure 3 A cross-sectional view of the BB-direction electrical connector and the mating connector after they are in place, at which point the position guarantee is in the final locking position;

[0027] Figure 10 For along Figure 3 A cross-sectional view of the AA-direction electrical connector and the mating connector after they are in place, at which point the position guarantee is in the final locking position;

[0028] Figure 11 For along Figure 3 The cross-sectional view of the CC-direction electrical connector after it has been inserted into the mating connector, at which point the position guarantee is in the final locked position.

[0029] Explanation of reference numerals in the accompanying drawings for the specific implementation methods:

[0030]

[0031]

Detailed Implementation Methods

[0032] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, the present utility model will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 11As shown, this is the electrical connector of the present invention. The electrical connector is inserted into a mating connector 200 along the front-to-back direction to achieve electrical connection. The electrical connector includes a housing 1 and multiple terminals (not shown) housed within the housing 1. A locking structure 11 extends integrally from the housing 1. The locking structure 11 has two arms 111 extending along the front-to-back direction and a through groove 114 located between the two arms 111. Each arm 111 has a locking part 112 protruding upward, which is used to engage with the engaging part 31 of the mating connector 200. A stop protrusion 12 protrudes from the side surface of the housing 1 facing the locking structure 11. A position guarantee 2 is installed between the side surface of the housing 1 and the locking structure 11. The position guarantee 2 is in a pre-locked position and a final locked position relative to the housing 1 along the front-to-back direction. The position guarantor 2 can be selectively moved between positions. The position guarantor 2 includes an anti-retraction protrusion 221 and a stop arm 23. When the position guarantor 2 is in the pre-locked position, the anti-retraction protrusion 221 is received in the through groove 114 and blocked rearward by the rear wall surface of the through groove 114. The stop surface S of the stop arm 23 is blocked forward by the stop protrusion 12. The displacement of the position guarantor 2 in the front-back direction is restricted. When the electrical connector and the mating connector 200 are engaged, the mating connector 200 abuts against the stop arm 23, causing the stop arm 23 to deform in the left-right direction. The stop surface S separates from the stop protrusion 12 to unlock, allowing the position guarantor 2 to move from the pre-locked position to the final locked position. When the position guarantor 2 is in the final locked position, the stop portion 25 of the position guarantor 2 is located below the locking structure 11 to restrict the downward deformation of the locking structure 11 for unlocking. In this embodiment, the front-back direction is the X-axis direction, the left-right direction is the Y-axis direction, and the up-down direction is the Z-axis direction.

[0034] like Figure 1 and Figure 2 As shown, a locking structure 11 extends upward and backward from the housing 1. The locking structure 11 can elastically deform in the vertical direction. The locking structure 11 includes two arms 111 arranged side by side in the horizontal direction. The front ends of the two arms 111 are directly connected to the top side of the housing 1. The rear ends of the two arms 111 are connected together to form a pressing part 113. Each arm 111 has a locking part 112 protruding upward. The side and bottom of the locking part 112 are connected to the arm 111. The locking part 112 has a solid protrusion 231 structure. Unlike the prior art, there is no need to open a relief groove on the locking part 112, thus maintaining the integrity of the locking part 112. Moreover, the locking part 112 and the arm 111 are connected in two positions (side and bottom) to have good structural strength. When the electrical connector and the mating connector 200 tend to separate after mating, the locking part 112 is used to prevent the engaging part 31 from disengaging. The locking part 112 transmits the pushing force from the engaging part 31 to the arm part 111, dispersing the force on the locking part 112 and thus increasing the service life of the locking part 112.

[0035] like Figure 2 and Figure 6 As shown, the through groove 114 is located between the two arms 111 and has a rear stop 115 located at the rear end of the through groove 114. The front end of the rear stop 115 is connected to the two opposite inner sides of the two arms 111 to enhance the linkage between the two arms 111, thereby ensuring that the two locking parts 112 maintain synchronization when engaging or disengaging with the engaging part 31 of the mating connector 200. The rear end of the rear stop 115 is connected to the middle of the pressing part 113 to strengthen the structural strength of the pressing part 113 and prevent the pressing part 113 from being dented and deformed in the middle after being pressed repeatedly, thereby enhancing the service life of the locking structure 11.

[0036] like Figure 2 As shown, the through groove 114 extends in the front-rear direction and has a first section 1141 and a second section 1142. The first section 1141 is located in front of the second section 1142. The width of the first section 1141 in the left-right direction is greater than the width of the second section 1142. A stop protrusion 12 is formed by protruding upward from the top side of the housing 1. The stop protrusion 12 is exposed by the first section 1141 and can be directly observed from the front and top sides of the housing 1. The width is greater than the width of the stop protrusion 12 to make way for the stop protrusion 12. When the locking structure 11 needs to deform downward, it prevents the two arms 111 from interfering with the stop protrusion 12 in the vertical direction. The second section 1142 is located between the two locking parts 112 and has a smaller width. This means that the width of the two arms 111 where the two locking parts 112 are set is larger and closer, thereby enhancing the structural strength of the arms 111 where the locking parts 112 are set, which is beneficial to the long-term use of the locking structure 11. The through slot 114 extends further forward until it passes through the front end of the locking structure 11 to form an unlocking path P extending in the front-rear direction between the surface of the housing 1 and the front ends of the two arms 111. The unlocking path P is used for the insertion of the actuating rib 32 of the mating connector 200. When the electrical connector and the mating connector 200 are plugged in, the actuating rib 32 can be correspondingly received between the two arms 111 to guide the position of the two arms 111 and restrict the two arms 111 from deflecting in the left-right direction, so that the locking part 112 and the engaging part 31 can be well engaged.

[0037] like Figure 2 , Figure 6 and Figure 11As shown, the position guarantor 2 includes a base 21, a stop 25 and a handle 26 forming an upward protrusion 231 from the base 21. The top of the handle 26 is higher than the top of the stop 25 to facilitate the operation of the position guarantor 2 to move forward or backward via the handle 26. An inclined transition stop 251 is provided at the transition connection between the front end and the top of the stop 25. The transition stop 251 extends obliquely from front to back and upward to prevent the edges of the stop 25 from being too sharp and impacting the lock when the position guarantor 2 moves from the pre-lock position to the final lock position. The buckle structure 11 causes the locking structure 11 to unnecessarily warp, thereby preventing the anti-retraction protrusion 221 from falling out from below the through groove 114 of the warped locking structure 11. The lower surface of the pressing part 113 is also set as an inclined surface so that when the position guarantee member 2 is in the final locked position, the stop part 25 is located below the pressing part 113. When the pressing part 113 is pressed down, the transition stop surface 251 can make face-to-face contact with the lower surface of the pressing part 113, so that the stop part 25 has a more stable support effect on the pressing part 113, thereby effectively limiting the downward deformation of the locking structure 11.

[0038] like Figure 2 and Figure 6 As shown, an extension 22 extends forward from the base 21. The extension 22 extends approximately horizontally, and an anti-retraction protrusion 221 is formed by protruding upward from the upper surface of the extension 22. The anti-retraction protrusion 221 has a thickness that gradually increases from top to bottom, so that the bottom of the anti-retraction protrusion 221 and the extension 22 are more tightly joined, which strengthens the structural strength of the anti-retraction protrusion 221. The anti-retraction protrusion 221 is correspondingly received in the through groove 114 to make reasonable use of space to accommodate the position guarantee member 2. The anti-retraction protrusion 221 does not occupy additional space for the downward deformation of the locking structure 11, thereby avoiding increasing the height of the locking structure 11, which is conducive to the miniaturization of the electrical connector. The front end face of the anti-reverse protrusion 221 extends backward at an angle from bottom to top. The front end face of the anti-reverse protrusion 221 is connected to the top surface by an arc transition to guide the anti-reverse protrusion 221 smoothly into the through groove 114 during the installation of the position guarantee 2, preventing the upper end of the anti-reverse protrusion 221 from being scratched. When the position guarantee 2 is in the pre-locked position, the anti-reverse protrusion 221 is blocked by the front end face of the rear stop 115, so the position guarantee 2 cannot be withdrawn from the housing 1. When the electrical connector and the mating connector 200 are inserted into place, and the position guarantee 2 is in the final locked position, the anti-reverse protrusion 221 moves forward between the two locking parts 112, such as... Figure 11 The anti-retraction protrusion 221 shown is located on one side of the locking part 112. If the two locking parts 112 are offset on one side in the left-right direction, they will be blocked by the anti-retraction protrusion 221, so that the two locking parts 112 will not be misaligned and disengaged after being well engaged with the engaging part 31, thereby ensuring the firmness of the locking between the electrical connector and the mating connector 200.

[0039] like Figures 2 to 5 As shown, two stop arms 23 extend forward from the end of the extension 22. A protrusion 231 protrudes from the inner side of the end of each stop arm 23, facing each other. The top surface of the protrusion 231 is higher than the top surface of the other parts of the stop arm 23, and the top surface of the protrusion 231 is higher than the top surface of the stop protrusion 12. The bottom of the front end of each protrusion 231 is recessed to form a stop surface S. The stop surface S faces forward and the angle between it and the front-back direction is less than 90 degrees. The rear end of the stop protrusion 12 has two inclined abutments 121 corresponding to the two stop surfaces S respectively. The inclined abutments 121 are parallel to the corresponding stop surfaces S. When the position guarantor 2 is in the pre-locked position, the inclined abutments 121 stop at the stop surfaces S. The angle between the oblique stop surface 121 and the stop surface S and the front-rear direction is less than 90 degrees, so that the oblique stop surface 121 and the stop surface S are engaged at a negative angle. That is, the stop protrusion 12 is accommodated in the bottom recess of the protrusion 231 and is held in place. When the electrical connector and the mating connector 200 are not plugged in (especially during the transportation of the electrical connector), when the position guarantee 2 assembled in the pre-locked position tends to move forward due to vibration or other reasons, the oblique stop surface 121 and the stop surface S interfere to prevent the stop arm 23 from deforming outward in the left-right direction, thereby ensuring that the oblique stop surface 121 and the stop surface S will not separate, and enhancing the holding force of the position guarantee 2 in the pre-locked position. When the position guarantor 2 is in the pre-locked position, a part of the stop arm 23 (i.e. the protrusion 231 at the end of the stop arm 23) and the stop protrusion 12 are exposed upward in the first section 1141 of the through groove 114 to prevent the locking structure 11 from deforming downward and colliding with the two protrusions 231 and the stop protrusion 12, thus ensuring the normal deformation of the locking structure 11.

[0040] like Figures 2 to 5As shown, each protrusion 231 has an unlocking surface R extending obliquely from front to back on one side of its front end top along the left-right direction. Both unlocking surfaces R are located above the stop protrusion 12 and form a roughly V-shaped inlet. The two unlocking surfaces R are located on the unlocking path P. When the mating connector 200 is inserted into the electrical connector, the actuating rib 32 of the mating connector 200 is inserted into the unlocking path P. The left and right sides of the actuating rib 32 abut against the two unlocking surfaces R respectively, so that the two stop arms 23 are stretched open and deformed outward. As the stop arms 23 move inward, the two unlocking surfaces R are opened. The external deformation causes the stop surface S to shift outward until it is completely offset to the outside of the stop protrusion 12. That is, the oblique stop surface 121 can no longer stop in front of the stop surface S. At this time, the position guarantee 2 is allowed to move forward from the pre-lock position, and the front end of the unlock surface R is set further forward than the front end of the stop surface S. This ensures that the stop arm 23 can be unlocked and deformed first when the docking connector 200 is inserted, ensuring that the stop protrusion 12 is completely located outside the stop protrusion 12. This facilitates the subsequent operation of pushing the position guarantee 2 forward to the final lock position and improves the smoothness of the operation process. The anti-retraction protrusion 221 of the position guarantee 2 is provided on the extension 22, and the stop surface S and the unlocking surface R are provided on the stop arm 23, so that the anti-retraction function and the stop unlocking function are set separately. On the one hand, it is beneficial that the stop arm 23 can be made thinner and longer than the extension 22 and have better elasticity, so that the stop surface S can be engaged or separated from the inclined stop surface 121 under the elastic action. On the other hand, the deformation of the stop arm 23 in the left and right directions will not cause the anti-retraction protrusion 221 to fall out of the through groove 114 in the up and down directions, thereby ensuring that the position guarantee 2 will not fall out of the housing 1 in the pre-locked position.

[0041] like Figure 2 and Figure 9-11 As shown, two side arms 24 extend forward from the base 21. Each side arm 24 has a protruding locking point 241 on its outer side. The housing 1 has a protruding locking engagement part 13 on the side facing the side arm 24. The locking point 241 engages with the front side of the locking engagement part 13 to keep the position guarantor 2 in the locked position. The two side arms 24 are located outside the two stop arms 23 in the left-right direction. The end of each stop arm 23 and the end of the side arm 24 on its adjacent side have a limiting part L protruding towards each other. The two limiting parts L strengthen the end of the stop arm 23 and the end of the side arm 24. The two opposing limiting parts L can abut against each other when the stop arm 23 and the side arm 24 deform in the left-right direction, thereby preventing the stop arm 23 and the side arm 24 from being over-deformed and fatigued to the point of breakage. The stop arm 23 is arranged vertically opposite to the locking part 112. The thickness of the stop arm 23 in the vertical direction is less than the thickness of the side arm 24, so as to reduce the space occupied by the stop arm 23 in the downward pressing of the locking structure 11, so as to ensure that the locking part 112 can fully deform downward during the engagement with the engaging part 31 until the engaging part 31 engages with one side of the locking part 112.

[0042] like Figure 4, Figure 6 and Figure 7-11 As shown, the docking connector 200 includes a docking housing 3 and two engaging portions 31 protruding from the inner wall of the docking housing 3 and an actuating rib 32. When using the electrical connector of this invention, the position guarantee member 2 is first installed in the pre-locked position. At this time, the anti-retraction protrusion 221 is correspondingly received in the through groove 114 and is blocked backward by the rear stop portion 115. The two stop surfaces S are blocked forward by the two oblique stop surfaces 121 of the stop protrusion 12. The position guarantee member 2 cannot move forward or backward. When the electrical connector is inserted and engaged with the docking connector 200, the docking housing 3 receives the housing 1, and the two engaging portions 31 slide along the two arms 111 respectively. The actuating rib 32 inserts into the unlocking path P and abuts against the two unlocking surfaces R, causing the two stop arms 23 to expand outward and deform until the two... The engaging part 31 extends from one side of the latching part 112 to the other side of the latching part 112, and the mating connector 200 and the electrical connector are connected. At this time, the two stop surfaces S are completely offset from the stop protrusion 12 in the left and right directions. The stop protrusion 12 can no longer block the two stop surfaces S, and the limiting part L of the stop arm 23 and the limiting part L of the side arm 24 remain in abutting state to prevent the stop arm 23 from being over-deformed. The position guarantee member 2 can be pushed forward to the final lock position, so that the final lock point 241 on the side arm 24 is engaged with the final lock mating part 13 on the housing 1. The protrusion 231 passes over the stop protrusion 12, and the position guarantee member 2 is in the final lock position. The blocking part 25 is located below the pressing part 113 to prevent the pressing part 113 from deforming downward to unlock.

[0043] In summary, the electrical connector 100 of this utility model has the following beneficial effects:

[0044] (1) By providing a stop protrusion 12 on the housing 1 to stop the stop arm 23 of the position guarantee 2, the locking part 112 is prevented from being directly stopped by the stop arm 23, thus avoiding the locking part 112 being subjected to the force applied by the stop arm 23. Furthermore, there is no need to cut a groove at the position of the locking part 112 to accommodate the stop arm 23, making the locking part 112 a complete and thick protrusion structure to ensure the structural strength of the locking part 112. The anti-retraction protrusion 221 is correspondingly housed in the through groove 114 to make reasonable use of space to house the position guarantee 2. The anti-retraction protrusion 221 does not additionally occupy the space for downward deformation of the locking structure 11, thereby avoiding increasing the height of the locking structure 11, which is beneficial for the miniaturization of the electrical connector. Moreover, the anti-retraction protrusion 221 is located in the through groove 114, thus offset from the locking part 112 in the front-back direction. Since the anti-retraction protrusion 221 will not interfere with the locking part 112, the locking part 112 will not be worn by the position guarantee member 2 that moves back and forth, thus ensuring the structural strength of the locking part 112. The anti-retraction protrusion 221 of the position guarantee member 2 is located on the extension part 22, and the stop surface S and the unlocking surface R are located on the stop arm 23, so that the anti-retraction function and the stop unlocking function are set separately. On the one hand, it is beneficial that the stop arm 23 can be made thinner and longer than the extension part 22 and have better elasticity, so that the stop surface S can be engaged or separated from the stop protrusion 12 under the elastic action. On the other hand, the deformation of the stop arm 23 in the left and right directions will not cause the anti-retraction protrusion 221 to fall out of the through groove 114 in the up and down directions, thus ensuring that the position guarantee member 2 will not fall out of the housing 1 in the pre-locked position.

[0045] (2) One end of the rear stop 115 is connected to the two inner sides of the two arms 111 to enhance the linkage between the two arms 111, thereby ensuring that the two latches 112 maintain synchronization when engaging or disengaging with the engaging part 31 of the docking connector 200. The other end of the rear stop 115 is connected to the middle of the pressing part 113 to strengthen the structural strength of the pressing part 113 and prevent the pressing part 113 from being dented, deformed or even broken in the middle after being pressed repeatedly, thereby enhancing the service life of the latch structure 11.

[0046] (3) The anti-retracting protrusion 221 has a thickness that gradually increases from top to bottom, so that the bottom of the anti-retracting protrusion 221 and the extension 22 are more tightly connected, which strengthens the structural strength of the anti-retracting protrusion 221. The front end face of the anti-retracting protrusion 221 extends backward at an angle from bottom to top. The front end face of the anti-retracting protrusion 221 and the top face are connected by an arc transition, so that the anti-retracting protrusion 221 can be smoothly guided into the through groove 114 when the position guarantee 2 is installed, so as to avoid the upper end of the anti-retracting protrusion 221 being scratched.

[0047] (4) The stop surface S faces forward and the angle between it and the front-back direction is less than 90 degrees. The rear end of the stop protrusion 12 has an inclined stop surface 121 corresponding to the stop surface S. The inclined stop surface 121 is parallel to the corresponding stop surface S. When the position guarantee 2 is in the pre-lock position, the inclined stop surface 121 stops in front of the stop surface S, so that the inclined stop surface 121 and the stop surface S are engaged at a negative angle. When the electrical connector and the mating connector 200 are not plugged in (especially during the transportation of the electrical connector), when the position guarantee 2 assembled in the pre-lock position tends to move forward due to vibration or other reasons, the inclined stop surface 121 interferes with the stop surface S to prevent the stop arm 23 from deforming outward in the left-right direction, thereby ensuring that the inclined stop surface 121 and the stop surface S will not separate, and enhancing the holding force of the position guarantee 2 in the pre-lock position.

[0048] (5) The through groove 114 extends in the front-back direction and has a first section 1141 and a second section 1142. The width of the first section 1141 in the left-right direction is greater than the width of the second section 1142. When the position guarantee member 2 is in the pre-locked position, a part of the stop arm 23 (i.e. the protrusion 231 at the end of the stop arm 23) and the stop protrusion 12 are exposed upward in the first section 1141 of the through groove 114 to avoid the locking structure 11 deforming downward and colliding with the two protrusions 231 and the stop protrusion 12. The second section 1142 is located between the two locking parts 112 and has a smaller width, which means that the width of the two arm parts 111 where the two locking parts 112 are set is larger and closer, thereby enhancing the structural strength of the arm parts 111 where the locking parts 112 are set and extending the service life of the locking structure 11.

[0049] The above detailed description is only a description of the preferred embodiment of this utility model and is not intended to limit the patent scope of this utility model. Therefore, all equivalent technical changes made using the content of this invention's specification and illustrations are included within the patent scope of this invention.

Claims

1. An electrical connector for mating with a mating connector, characterized in that, include: A housing, extending from the housing is a locking structure, the locking structure includes two arms extending in a front-rear direction and a through groove located between the two arms, a rear stop is provided at the rear end of the through groove, at least one arm protrudes upward with a locking part, the locking part is used to engage with the engaging part of the mating connector, and a stop protrusion protrudes from the side surface of the housing facing the locking arm. A position guarantee is mounted on a housing and moves relative to the housing between a pre-locked position and a final-locked position. The position guarantee includes a base, a stop portion protruding upward from the base, an extension portion extending forward from the base, an anti-reverse protrusion protruding upward from the upper surface of the extension portion, the anti-reverse protrusion being received in a through groove, and at least one resilient stop arm extending forward from the end of the extension portion, the stop arm having a stop surface. When the position guarantee is in the pre-locked position, the stop part and the locking structure are offset vertically, the anti-reverse protrusion is blocked by the rear stop part, and the stop surface is blocked by the rear end of the stop protrusion to prevent the position guarantee from moving forward from the pre-locked position. When the electrical connector is plugged into the mating connector, the stop arm is actuated by the mating connector and deforms in the left and right direction. The stop surface and the stop protrusion disengage to allow the position guarantee to move forward to the final locking position. When the position guarantee is in the final locking position, the stop part is located on the lower side of the locking structure to prevent the locking structure from deforming downward.

2. The electrical connector according to claim 1, characterized in that: The locking structure also includes a pressing part connecting the rear ends of the two arms. One end of the rear stop connects the two inner sides of the two arms, and the other end is connected to the pressing part. The locking part protrudes upward from each arm. When the position guarantee is in the final lock position, the stop is located below the pressing part, and the anti-reverse protrusion is located between the two locking parts in the left-right direction.

3. The electrical connector according to claim 1, characterized in that: The thickness of the anti-recoil protrusion gradually increases from top to bottom along the front-to-back direction. The front end face of the anti-recoil protrusion extends backward at an angle from bottom to top, and the front end face of the anti-recoil protrusion is connected to the top surface in an arc transition.

4. The electrical connector according to claim 1, characterized in that: The stop surface faces forward and the angle between it and the front-back direction is less than 90 degrees. The rear end of the stop protrusion is provided with an inclined baffle corresponding to the stop surface, and the inclined baffle is parallel to the stop surface.

5. The electrical connector according to claim 1, characterized in that: A protrusion is provided on one side of the end of the stop arm along the left and right direction. The bottom of the front end of the protrusion has a depression and a stop surface is formed in the depression. The top of the front end of the protrusion has an unlocking surface that extends obliquely from front to back along one side of the left and right direction. The front end of the unlocking surface is further forward than the front end of the stop surface. When the position guarantee is in the pre-locked position, the unlocking surface is above the stop protrusion.

6. The electrical connector according to claim 5, characterized in that: Two stop arms extend forward from the end of the extension, with the two stop arms protruding towards each other to form two protrusions. The stop protrusions are located between the two stop arms and stop in front of the two stop surfaces. The through groove extends forward through the front end of the locking arm to form an unlocking path extending in the front-rear direction between the surface of the housing and the two arms. The unlocking path is used for the insertion of the actuating rib of the mating connector. The two unlocking surfaces are located on the unlocking path and are abutted by the left and right sides of the actuating rib.

7. The electrical connector according to claim 1, characterized in that: Two stop arms extend forward from the end of the extension, with two stop surfaces located inside the two stop arms. Two side arms extend forward from the base and are located outside the two stop arms respectively. Each side arm has a final locking point on one outer side in the left-right direction. The housing has a final locking engagement part corresponding to each side arm in the left-right direction. When the position guarantee member is in the final locking position, the final locking point engages with the final locking engagement part to prevent the position guarantee member from retracting.

8. The electrical connector according to claim 7, characterized in that: A limiting part is provided at the end of the stop arm and the end of the side arm facing each other, and the limiting part of the stop arm and the limiting part of the side arm abut against each other when the stop arm deforms in the left and right direction.

9. The electrical connector according to claim 7, characterized in that: When the position guarantee is in the pre-locked position, the stop arm is located on the lower side of the latch, and the thickness of the stop arm in the vertical direction is less than the thickness of the side arm in the vertical direction.

10. The electrical connector according to claim 1, characterized in that: Each arm has an upwardly protruding locking part. The through groove extends in the front-to-back direction and has a first section and a second section. The width of the first section in the left-to-right direction is greater than that of the second section. A stop protrusion and a part of the stop arm protrude upwards from the first section. The width of the first section is greater than that of the stop protrusion. The second section is located between the two locking parts.

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