Double-locking connector

Abstract

The utility model relates to a double-locking connector. The double-locking connector comprises a plate end terminal, a wiring terminal and a plug piece, one end of the board end terminal is used for being welded with a circuit board, the other end of the board end terminal is provided with a plurality of elastic sheets, and the plurality of elastic sheets are encircled to form an annular terminal; one end of the wiring terminal is sleeved outside the plate end terminal, and the other end of the wiring terminal is used for being connected with a wire conductor; the plug piece is accommodated in the plate end terminal, and a plurality of elastic clamping hooks are arranged at the lower end of the plug piece; and in a combined state, the elastic sheet is clamped on the wiring terminal, and the elastic clamping hook is clamped with the inner side of the plate end terminal. The double-locking connector provided by the utility model has the advantage of good locking stability.

Description

Technical Field

[0001] The utility model relates to the field of connectors, in particular to a double locking connector. Background Art

[0002] There is a board-to-wire connector, including a board terminal, a wiring terminal and a plug. One end of the board terminal is provided with a plurality of springs in the form of a ring terminal, and the other end is used for welding with a circuit board; one end of the wiring terminal is sleeved on a plurality of springs, and the other end is used for connecting with a wire conductor; the plug is funnel-shaped, movably connected in the ring terminal, and when working, the spring is pressed close to the wiring terminal and clamped, but because the connector expands the spring by pressing the plug into the ring terminal, clamping the wiring terminal to achieve a full circle of locking, and then clamping the end of the spring in the groove at the upper end of the plug, but the effect of preventing the plug from falling out is not good. When the connector is turbulent, the spring is easy to fall out of the groove and slide to the unlocked state in the middle of the plug, resulting in unstable connection of the connector. Summary of the invention

[0003] Based on this, the purpose of the present invention is to provide a double locking connector, which has the advantage of good locking stability.

[0004] A double locking connector comprises a board terminal, a wiring terminal and a plug; one end of the board terminal is used for welding with a circuit board, and the other end is provided with a plurality of spring sheets, and the plurality of spring sheets are arranged around a ring-shaped terminal; one end of the wiring terminal is sleeved outside the board terminal, and the other end is used for connecting with a wire conductor; the plug is accommodated in the board terminal, and a plurality of elastic hooks are provided at its lower end; in the assembled state, the spring sheet is clamped on the wiring terminal, and the elastic hook is clamped with the inner side of the board terminal.

[0005] The double locking connector described in the utility model is designed with a plurality of spring sheets on the board end terminal, and the plurality of spring sheets form a ring terminal, and the wiring terminal is sleeved on the spring sheets; the plug is accommodated in the ring terminal, and a plurality of elastic hooks are provided at its lower end; when working, the plug squeezes the spring sheet to expand and clamp the spring sheet to fix it thereon, and the elastic hook hooks with the internal hooks of the board end terminal to achieve double locking, and the fixed center of gravity of the plug and the spring sheet terminal is moved down to the lower end of the plug and the inside of the board end terminal, which has a better effect on preventing the plug from falling out, thereby making the full circle locking stability of the connector better.

[0006] Furthermore, the spring sheet includes a contact portion, a locking portion, a movable portion and a guide head portion which are connected in sequence from bottom to top; the contact portion is arranged parallel to the axis of the ring-shaped terminal, the locking portion protrudes from the outer surface of the contact portion, the movable portion is inclined from bottom to top toward the axis of the ring terminal, and linear clamping plates are extended and fixed on both sides of one end of the movable portion close to the locking portion, the linear clamping plates protrude from the outer surface of the locking portion, and the guide head portion is inclined from bottom to top toward the direction away from the axis of the ring terminal; one end of the wiring terminal is sleeved on the contact portion, and the other end is used to connect with the wire conductor; the plug is accommodated in the spring sheet, and the elastic hook is connected to the hook at one end of the plate end terminal away from the spring sheet.

[0007] Furthermore, the locking portion has an arc or V-shaped longitudinal section, and the arc or V-shaped section is concave inwardly toward the axis of the ring-shaped terminal. The locking portion with an arc or V-shaped longitudinal section can have a larger displacement range and a better locking effect.

[0008] Furthermore, the board-end terminal includes a connecting portion, a plurality of solder legs, a plurality of stop bosses and a plurality of spring sheets; the cross-section of the connecting portion is annular, a plurality of solder legs are fixedly connected to one end of the connecting portion, are arranged parallel to the axis of the connecting portion, and are evenly distributed around the circular cross-section of the connecting portion for welding with the circuit board; a plurality of stop bosses are fixedly connected to an end of the connecting portion away from the solder legs, protrude from the outer peripheral surface of the connecting portion, and are evenly distributed around the center of the cross-section of the connecting portion; a plurality of spring sheets are fixedly connected to an end of the connecting portion away from the solder legs, one end of the terminal block is sleeved on the plurality of spring sheets, and abuts against the plurality of stop bosses; a plurality of protrusions are provided on the inner peripheral surface of the connecting portion, and a plurality of the protrusions are spaced apart from a plurality of the spring sheets for engaging with the elastic hook.

[0009] Furthermore, the plug includes a main body, a plurality of elastic hooks and a plurality of guide parts; the main body is a cylinder, and the plurality of elastic hooks are fixed at one axial end of the main body and arranged along the circumferential surface of the main body; a hook part is arranged at the end of the elastic hook away from the main body; a plurality of guide parts are fixed at one end of the main body close to the elastic hook, and their outer surfaces are connected to the outer circumferential surface of the main body and are located between the elastic hooks; the distance from the end of the outer surface of the guide part close to the hook part to the axis of the main body is shorter than the distance from the end of the outer surface of the guide part close to the main body to the axis of the main body; in the assembled state, the plug is pressed into the spring sheet, and the hook part is engaged with the protrusion.

[0010] Furthermore, a plurality of recessed portions are provided on the circumferential surface of the main body near one end of the elastic hook, and the plurality of recessed portions are located between the elastic hooks; the guide portion is connected to the bottom surface of the recessed portion; a groove is provided on the recessed portion, and a convex point is provided at the connection between the guide head and the movable portion, and the groove cooperates with the convex point to prevent the plug from falling out.

[0011] Furthermore, a plurality of guide grooves are provided on the peripheral surface of the plug, and the plurality of guide grooves are arranged in parallel around the axis of the main body, one end of which is connected to the upper end surface of the main body, and the other end of which is connected to the hook portion, for guiding the elastic hook to align and engage with the protrusion.

[0012] Furthermore, the upper and lower end surfaces of the hook are both inclined surfaces; the outer peripheral edge of one end of the plug having an elastic hook is an inclined surface; a column groove is provided at the center of the lower end surface of the body for separating the board end terminal from the plug.

[0013] Furthermore, a convex ridge is provided along a circumferential surface of one end of the body away from the elastic hook.

[0014] Furthermore, the terminal comprises a fixing portion, a sleeve portion and a wiring portion, the sleeve portion being used to sleeve the contact portion, and in an assembled state, its lower end surface abuts against the stop boss; one end of the fixing portion is fixedly connected to the sleeve portion, and the other end is fixedly connected to the wiring portion; the wiring portion is used to be crimped with a wire conductor.

[0015] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the connector of this application;

[0017] Figure 2 An exploded view of the connector of this application;

[0018] Figure 3 This is a cross-sectional view of the connector of the present application.

[0019] In the figure:

[0020] 1-board terminal; 11-connecting part; 111-protrusion; 12-welding foot; 13-stop boss; 14-spring; 141-contact part; 142-locking part; 143-movable part; 144-guide head; 1441-protrusion; 145-straight card;

[0021] 2-connection terminal; 21-fixing part; 22-sleeve part; 23-connection part;

[0022] 3-plug; 31-body; 311-column groove; 312-recessed portion; 313-convex ridge; 314-guide groove; 32-elastic hook; 321-hook portion; 33-guide portion;

[0023] 4- Circuit board; 5- Wire conductor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-3 The present application provides a double locking connector for board-to-wire connection, including a board-end terminal 1, a wiring terminal 2 and a plug 3.

[0028] The cross section of the board terminal 1 is generally annular, and one end thereof is used for welding on the circuit board 4. One end of the wiring terminal 2 is used for connecting with the wire conductor 5, and the other end of the wiring terminal 2 is sleeved outside the board terminal 1. The plug 3 is movably connected in the board terminal 1, and is used for pressing the board terminal 1 close to the wiring terminal 2, so that the board terminal 1 and the wiring terminal 2 are fixedly connected.

[0029] The board terminal 1 comprises a connecting portion 11 , a plurality of solder legs 12 , a plurality of stop bosses 13 and a plurality of spring sheets 14 .

[0030] The cross section of the connecting portion 11 is annular. Several solder legs 12 are fixedly connected to one end of the connecting portion 11, preferably arranged parallel to the axis of the connecting portion 11, and evenly distributed around the center of the cross section of the connecting portion 11. In this embodiment, the circuit board 4 is provided with several waist-shaped holes distributed in a ring shape, and the end of the solder leg 12 away from the connecting portion 11 passes through the waist-shaped holes and is welded to the circuit board 4. Several stop bosses 13 are fixedly connected to one end of the connecting portion 11 away from the solder leg 12, and are arranged at a certain angle to the connecting portion 11, protruding from the outer peripheral surface of the connecting portion 11, and are used to fix the connecting terminal 2. In this embodiment, several stop bosses 13 are arranged perpendicular to the connecting portion 11. As a preference, several stop bosses 13 are evenly distributed around the center of the cross section of the connecting portion 11. Several springs 14 are fixedly connected to one end of the connecting portion 11 away from the solder leg 12, extending outward along the axial direction of the connecting portion 11, and are used to connect the connecting terminal 2. The plug 3 is accommodated in the space surrounded by several springs 14. Preferably, the plurality of spring sheets 14 are evenly distributed around the center of the cross section of the connecting portion 11. More preferably, the plurality of spring sheets 14 and the plurality of stop bosses 13 are arranged at intervals.

[0031] Furthermore, a plurality of protrusions 111 are provided on the inner circumference of the connecting portion 11, which are used to be connected with the hook at the lower end of the plug 3. The plurality of protrusions 111 are evenly distributed around the center of the cross-section of the connecting portion 11. Preferably, the plurality of protrusions 111 and the plurality of spring sheets 14 are arranged at intervals to separate the force locking points of the plate terminal 1 and the plug 3 on different vertical lines to prevent force interference. In this embodiment, the protrusions 111 on the inner circumference of the connecting portion 11 can be formed by extrusion, and a plurality of depressions are formed on the outer circumference of the connecting portion 11 to indicate and guide the protrusions 111 to be connected with the hook of the plug 3.

[0032] The spring piece 14 includes a contact portion 141 , a locking portion 142 , a movable portion 143 and a guide head portion 144 which are arranged in sequence.

[0033] One end of the contact portion 141 is fixedly connected to the connecting portion 11, and is preferably arranged parallel to the axis of the connecting portion 11; the other end of the contact portion 141 is fixedly connected to the locking portion 142, and the locking portion 142 protrudes from the outer surface of the contact portion 141. In the present embodiment, the longitudinal section of the locking portion 142 is arc-shaped, and the arc is concave inward toward the axis of the connecting portion 11. In other embodiments, the longitudinal section of the locking portion 142 is V-shaped, and the sharp corner of the V-shape is inward toward the axis of the connecting portion 11. The locking portion 142 with an arc-shaped or V-shaped longitudinal section can have a larger displacement range and a better locking effect. In the assembled state, the locking portion 142 cooperates with the stop boss 13 to fix the terminal 2 on the board terminal 1. The movable portion 143 is fixedly connected to one end of the locking portion 142 away from the contact portion 141, and is arranged obliquely toward the axis of the connecting portion 11. The guide head 144 is fixedly connected to the end of the movable part 143 away from the locking part 142 and is tilted toward the direction away from the axis of the connecting part 11. The guide head 144 and the end of the movable part 143 away from the locking part 142 form a certain angle in the longitudinal section, and a convex point 1441 is provided at the connection between the guide head 144 and the movable part 143.

[0034] Furthermore, linear clamping plates 145 are extended and fixedly connected to both sides of one end of the movable portion 143 close to the locking portion 142 . The linear clamping plates 145 are located on both sides of the locking portion 142 and protrude from the outer surface of the locking portion 142 to strengthen the locking.

[0035] The terminal block 2 includes a fixing portion 21, a sleeve portion 22 and a wiring portion 23. The fixing portion 21 is in the form of a sheet and is provided with a circular hole. The sleeve portion 22 is in the form of a ring, and one axial end thereof is fixedly connected to the fixing portion 21 and is located above the circular hole. The wiring portion 23 is fixedly connected to one end of the fixing portion 21 away from the sleeve portion 22, and is used for crimping with the wire conductor 5. In this embodiment, the wiring portion 23 is a U-shaped clip, and the bottom of the U-shaped clip is connected to the fixing portion 21.

[0036] The plug 3 includes a body 31 , a plurality of elastic hooks 32 and a plurality of guide portions 33 .

[0037] The body 31 is a column, and a column groove 311 is provided at the center of the lower end surface thereof, which is used to separate the board terminal 1 from the plug 3. In this embodiment, a through hole is also provided on the circuit board 4, and when it is necessary to separate the board terminal 1 from the plug 3, a stick can be passed through the through hole and placed in the column groove 311 to push the plug 3 out of the board terminal 1.

[0038] A plurality of elastic hooks 32 are fixedly arranged at one axial end of the body 31 and arranged along the circumference of the body 31, arranged parallel to the axis of the body 31 and evenly distributed around the center of the cross section of the body 31. A hook portion 321 is arranged at one end of the elastic hook 32 away from the body 31, and the hook portion 321 faces outward away from the axis of the body 31. Preferably, the upper and lower end surfaces of the hook portion 321 are both inclined surfaces, so as to facilitate the elastic hook 32 to be hooked or disengaged with the protrusion 111.

[0039] Furthermore, a plurality of recessed portions 312 are provided on the circumferential surface of the body 31 near one end of the elastic hook 32, and the plurality of recessed portions 312 are located between the elastic hooks 32 and are evenly distributed around the center of the cross section of the body 31. Two opposite sides of the recessed portion 312 are respectively connected to the sides of two adjacent elastic hooks 32. Furthermore, a groove is provided on the recessed portion 312, and the groove cooperates with the protrusion 1441 to prevent the plug 3 from falling out.

[0040] The guide part 33 is fixed on both sides of the elastic hook 32 and connected to the bottom surface of the recessed part 312. The distance from the end of the outer surface of the guide part 33 close to the hook 321 to the axis of the body 31 is shorter than the distance from the end of the outer surface of the guide part 33 close to the body 31 to the axis of the body 31, so that the spring piece 14 is conveniently introduced from the end of the outer surface of the guide part 33 close to the hook 321 to the recessed part 312. There is a gap between the guide parts 33 between two adjacent elastic hooks 32, so that the plug 3 is conveniently connected to the board terminal 1 after being squeezed. Preferably, the plurality of guide parts 33 are uniform around the center of the cross section of the body 31, and are generally conical, with the top of the cone facing outward away from the body 31, so that the plug 3 is conveniently introduced into the board terminal 1.

[0041] Furthermore, a ridge 313 is provided along the circumference of one end of the body 31 away from the elastic hook 32 , so as to facilitate the connection or separation of the plug 3 with the board terminal 1 .

[0042] Furthermore, a plurality of guide grooves 314 are provided on the peripheral surface of the plug 3. The plurality of guide grooves 314 are arranged parallel to the axis of the main body 31, one end of which is connected to the upper end surface of the main body 31, and the other end of which is connected to the hook portion 321, for guiding the elastic hook 32 to align with the protrusion 111 for hook connection.

[0043] Furthermore, the outer peripheral edge of one end of the plug 3 provided with the elastic hook 32 is a bevel. Specifically, the outer side surface of the end of the elastic hook 32 away from the body 31 is a bevel, which facilitates the introduction of the plug 3 into the board terminal 1.

[0044] When the connector of the present application is used, the sleeve 22 is sleeved on the board terminal 1 from the direction of the spring sheet 14 until the lower surface of the fixing portion 21 abuts against the stop boss 13, and at this time, the inner side surface of the sleeve 22 contacts the outer side surface of the contact portion 141. Then, the plug 3 is grabbed and placed above the board terminal 1. In the vertical line, the guide groove 314 is aligned with the two adjacent spring sheets 14, that is, aligned with the protrusion 111; the recessed portion 312 and the guide portion 33 are aligned with the spring sheet 14. Then, the plug 3 is moved as a whole toward the center of the board terminal 1, and a number of spring sheets 14 are squeezed outward. The guide head 144 slides along the guide part 33 into the recessed part 312, and the convex point 1441 is engaged with the groove. The movable part 143 gradually moves away from the annular axis of the connecting part 11 as the guide head 144 slides, and drives the end of the locking part 142 close to the movable part 143 and the linear clamping plate 145 to move above the upper edge of the sleeve 22, achieving full circle locking, and axially fixing the sleeve 22 between the stop boss 13 and the locking part 142, so that the terminal 2 is fixed on the board terminal 1. At the same time, the elastic hook 32 moves down between the two spring pieces 14 and is placed in the connecting part 11, and its upper hook 321 is connected with the protrusion 111 by hook, so that the lower end of the plug 3 is fixedly connected with the board terminal 1, and double locking is achieved, so that the full circle locking of the board terminal 1 and the terminal 2 is more stable and firm, and not easy to fall out.

[0045] When it is necessary to separate the board terminal 1 and the wiring terminal 2, from the side of the circuit board 4 away from the plug 3, use a stick to pass through the through hole, put it in the column groove 311 to push out the plug 3, and several elastic hooks 32 approach the axis of the connecting part 11, the protrusion 111 separates from the hook 321, the convex point 1441 moves out of the groove, the guide head 144 slides downward to the guide part 33 and disengages, and several movable parts 143 approach the axis of the connecting part 11, and the end of the locking part 142 close to the movable part 143 leaves the upper edge of the sleeve 22 to achieve full circle unlocking. The sleeve 22 can be removed from the plug 3, so that the board terminal 1 and the wiring terminal 2 are separated.

[0046] The connector of the present application is designed with a plurality of spring sheets 14 on the board-end terminal 1, and the plurality of spring sheets 14 form a ring-shaped terminal, and a plurality of protrusions 111 are arranged in the board-end terminal 1; the wiring terminal 2 is sleeved on the spring sheets 14; the plug 3 is accommodated in the ring-shaped terminal, and a plurality of elastic hooks 32 are arranged at its lower end; when working, the plug 3 squeezes the spring sheet 14 to expand and clamp the spring sheet 14 with the stop boss 13 to fix it thereon, and the elastic hook 32 hooks with the protrusion 111 to realize double locking, and the fixed center of gravity of the plug 3 and the spring sheet 14 terminal is moved down to the lower end of the plug 3 and the inside of the board-end terminal 1, which has a better anti-slip effect on the plug 3, thereby making the full-circle locking stability of the connector better.

[0047] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A double locking connector, characterized in that: It includes a board end terminal, a wiring terminal and a plug; one end of the board end terminal is used for welding with a circuit board, and the other end is provided with a plurality of spring sheets, and the plurality of spring sheets are arranged around a ring-shaped terminal; one end of the wiring terminal is sleeved outside the board end terminal, and the other end is used for connecting with a wire conductor; the plug is accommodated in the board end terminal, and a plurality of elastic hooks are provided at its lower end; in the assembled state, the spring sheet is clamped on the wiring terminal, and the elastic hook is clamped with the inner side of the board end terminal.

2. The double lock connector according to claim 1, characterized in that: The spring sheet includes a contact portion, a locking portion, a movable portion and a guide head portion which are connected in sequence from bottom to top; the contact portion is arranged parallel to the axis of the ring-shaped terminal, the locking portion protrudes from the outer surface of the contact portion, the movable portion is inclined from bottom to top toward the axis of the ring terminal, and linear clamping plates are extended and fixedly connected on both sides of one end of the movable portion close to the locking portion, the linear clamping plates protrude from the outer surface of the locking portion, and the guide head portion is inclined from bottom to top toward the direction away from the axis of the ring terminal; one end of the wiring terminal is sleeved on the contact portion, and the other end is used to connect with the wire conductor; the plug is accommodated in the spring sheet, and the elastic hook is connected to the hook at one end of the plate end terminal away from the spring sheet.

3. The double lock connector according to claim 2, characterized in that: The longitudinal section of the locking portion is arc-shaped or V-shaped, and the arc-shaped or V-shaped is concave inwardly toward the axis of the ring-shaped terminal.

4. The double locking connector according to any one of claims 2-3, characterized in that: The board-end terminal includes a connecting part, a plurality of welding feet, a plurality of stop bosses and a plurality of spring sheets; the cross-section of the connecting part is annular, a plurality of welding feet are fixedly connected to one end of the connecting part, are arranged parallel to the axis of the connecting part, and are evenly distributed around the circular cross-section of the connecting part for welding with the circuit board; a plurality of stop bosses are fixedly connected to an end of the connecting part away from the welding feet, protrude from the outer peripheral surface of the connecting part, and are evenly distributed around the center of the cross-section of the connecting part; a plurality of spring sheets are fixedly connected to an end of the connecting part away from the welding feet, one end of the wiring terminal is sleeved on the plurality of spring sheets, and abuts against the plurality of stop bosses; a plurality of protrusions are provided on the inner peripheral surface of the connecting part, and a plurality of the protrusions are spaced apart from a plurality of the spring sheets for engaging with the elastic hook.

5. The double lock connector according to claim 4, characterized in that: The plug includes a main body, a plurality of elastic hooks and a plurality of guide parts; the main body is a column, and the plurality of elastic hooks are fixed at one axial end of the main body and arranged along the circumferential surface of the main body; a hook part is arranged at the end of the elastic hook away from the main body; a plurality of guide parts are fixed at one end of the main body close to the elastic hook, and their outer surfaces are connected to the outer circumferential surface of the main body and are located between the elastic hooks; the end of the outer surface of the guide part close to the hook part is shorter than the distance from the end of the outer surface of the guide part close to the main body to the axis of the main body; in the assembled state, the plug is pressed into the spring sheet, and the hook part is engaged with the protrusion.

6. The double lock connector according to claim 5, characterized in that: A plurality of recessed portions are provided on the circumferential surface of the main body near one end of the elastic hook, and the plurality of recessed portions are located between the elastic hooks; the guide portion is connected to the bottom surface of the recessed portion; a groove is provided on the recessed portion, and a convex point is provided at the connection between the guide head and the movable portion, and the groove cooperates with the convex point to prevent the plug from falling out.

7. The double lock connector according to claim 6, characterized in that: A plurality of guide grooves are arranged on the peripheral surface of the plug, and the plurality of guide grooves are arranged in parallel around the axis of the main body, one end of which is connected to the upper end surface of the main body, and the other end of which is connected to the hook part, for guiding the elastic hook to align and engage with the protrusion.

8. The double lock connector according to claim 7, characterized in that: The upper and lower end surfaces of the hook are both inclined surfaces; the outer peripheral edge of one end of the plug with an elastic hook is an inclined surface; a column groove is provided at the center of the lower end surface of the body for separating the board end terminal from the plug.

9. The double lock connector according to claim 8, characterized in that: A convex ridge is provided along the circumference of one end of the main body away from the elastic hook.

10. The double lock connector according to claim 9, characterized in that: The terminal comprises a fixing portion, a sleeve portion and a wiring portion, wherein the sleeve portion is used to sleeve the contact portion, and in an assembled state, its lower end surface abuts against the stop boss; one end of the fixing portion is fixedly connected to the sleeve portion, and the other end is fixedly connected to the wiring portion; the wiring portion is used to be crimped with a wire conductor.

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