CN117199865A

CN117199865A - Board end connector

Info

Publication number: CN117199865A
Application number: CN202311250988.2A
Authority: CN
Inventors: 张卫德; 沈松柏
Original assignee: Dongguan Kunjia Electronics Co ltd
Current assignee: Dongguan Kunjia Electronics Co ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2023-12-08

Abstract

The utility model discloses a board end connector, comprising: an insulator formed with a top plate, a bottom plate, two side plates, and a middle partition; the top plate, the bottom plate and the two side plates are jointly enclosed to form a functional space, and the middle partition part divides the functional space into a butt joint cavity with a forward opening and an operation cavity positioned at the rear end of the butt joint cavity; a terminal fixed in the insulator, comprising: the device comprises an operation section, a fixed section, a connecting section and a butt joint section, wherein the operation section and the fixed section are opposite in the up-down direction and form a spacing space at intervals; the locking plate is fixed on the insulator and positioned at two ends of the operating cavity along the left-right direction, and the locking plate is provided with an elastic buckling arm part which is exposed into the operating cavity and can elastically deform along the left-right direction; the operation body is arranged in the operation cavity of the insulator in a sliding mode, an expansion part embedded into the interval space is formed in the operation cavity of the insulator, and a lock catch matching part matched with the elastic lock catch arm part is formed on the operation body, so that the operation body can be locked at multiple positions in a sliding mode along the front-back direction.

Description

Board end connector

Technical Field

The present utility model relates to a board end connector.

Background

The related prior art can refer to Chinese patent No. 219498219U, the patent discloses a front-plug rear-lift type FPC connector capable of preventing a rear cover from falling, the connector comprises a plastic main body and an electric terminal, the rear end of the plastic main body is provided with a rear cover capable of being lifted, the left side surface and the right side surface of one end of the rear cover, which is close to the plastic main body, are respectively provided with a rotating shaft extending outwards, the rear end of a bearing part is provided with a limiting part for limiting the rotating shaft to move backwards and protrude upwards, a supporting shaft which is horizontally arranged is arranged in a terminal clearance groove, the pressing end comprises a supporting part and a pressing part, and the supporting part is provided with a limiting groove which is matched and sleeved into the supporting shaft and is provided with an opening upwards. The supporting part is provided with a limiting part which is used for limiting the backward movement of the rotating shaft and protrudes upwards, the supporting part is provided with a limiting groove which is used for being sleeved with the supporting shaft in a matching mode and is provided with an upward opening, the supporting shaft is limited in the limiting groove, and the rear cover is prevented from falling off under the double limitation of the limiting part and the limiting groove. However, the actual product still has the risk of falling off, and the setting of the limiting part can only reduce the risk of falling off of the rear cover, but cannot completely stop.

Therefore, there is a need to develop a new board-end connector to solve the above technical problems.

Disclosure of Invention

The utility model provides a board end connector capable of resisting vibration and preventing an operating body from falling off.

In order to achieve the purpose, the utility model provides the following technical scheme:

a board end connector comprising:

an insulator formed with a top plate, a bottom plate opposing the top plate in the up-down direction, two side plates connecting both ends of the top plate and the bottom plate in the left-right direction perpendicular to the up-down direction, and a middle partition;

the top plate, the bottom plate and the two side plates are jointly enclosed to form a functional space, and the middle partition part divides the functional space into a butt joint cavity with a forward opening and an operation cavity positioned at the rear end of the butt joint cavity;

a terminal fixed in the insulator and provided with a first functional part, wherein the first functional part comprises:

an operation section extending in a front-rear direction perpendicular to the up-down direction and the left-right direction;

the fixed section extends along the front-back direction and forms a spacing space with the operating section along the up-down direction at opposite intervals, and the spacing space is communicated with the operating cavity;

the connecting section is used for connecting the operating section with one end of the fixing section along the up-down direction;

the butt joint section is formed by extending the operation section and/or one end, connected with the connecting section, of the fixing section forward and backward, and the butt joint section is formed with contact protruding points which at least partially protrude into the butt joint cavity and are used for being electrically connected with the butt joint module;

the locking plate is fixed on the insulator and positioned at two ends of the operating cavity along the left-right direction, and the locking plate is provided with an elastic buckling arm part which is exposed into the operating cavity and can elastically deform along the left-right direction;

the operation body is arranged in the operation cavity of the insulator in a sliding mode along the front-back direction and comprises an expansion part embedded into the interval space;

the operation body is formed with hasp cooperation portion along the both ends position of left and right directions, hasp cooperation portion corresponds and detains the arm cooperation with elasticity, realizes the gliding multiposition locking of operation body along the fore-and-aft direction.

Further, the insulator is sunken to form the limit groove that sideslips on the medial surface at the both ends of operation chamber along left and right directions, limit groove that sideslips extends along the fore-and-aft direction, the both ends of operation body along left and right directions protrusion is formed with sideslip bulge to sideslip limit inslot.

Further, the elastic buckling arm part protrudes into the sideslip limiting groove to form a locking part, the outer surface of the sideslip protruding part is formed into a wavy shape to form the locking matching part, and the locking part is elastically matched to the locking matching part along the left-right direction to realize multi-position locking of the operation body sliding along the front-back direction.

Further, the insulator is located the side that the elasticity detained arm portion kept away from the operation chamber along left and right directions and is formed with the clearance of stepping down, the clearance of stepping down is in left and right directions intercommunication along the sideslip spacing groove for the elastic deformation of elasticity detained arm portion of stepping down.

Further, a bending part protruding into the sideslip limiting groove is formed on the locking plate, and the bending part is located on the rear end face of the sideslip protruding part.

Further, the elastic buckling arm part is formed by tearing the locking plate and extends along the front-back direction, two ends of the elastic buckling arm part are integrally connected with the locking plate to form a fixed beam shape, and the locking part is formed by protruding the middle of the elastic buckling arm part along the front-back direction.

Further, the method comprises the steps of: the first sliding limiting groove is formed on the inner surface of the bottom plate at the position of the operation cavity and extends along the front-back direction; the lower surface of the operating body is convexly provided with a convex rib part which is limited in the first sliding limiting groove in a sliding way.

Further, two first functional parts are arranged, the two first functional parts are opposite in the left-right direction and are arranged at intervals, and the fixed section of one first functional part is integrally connected with the fixed section of the other first functional part through a connecting part;

further, the connecting portion extends in a sheet shape along a front-back direction and a left-right direction, and left and right side edges of the connecting portion are respectively connected with lower edges of the two first functional portions.

Further, the back section holding groove extending along the front-back direction is formed on the inner surface of the bottom plate at the position of the operation cavity, the back section holding groove is upwards communicated with the first sliding limiting groove, the connecting part is limited and fixed in the back section holding groove, and the rib part is slidingly borne on the connecting part.

Further, when the operating body slides forward in the front-rear direction to a first preset position with respect to the insulator, the rear end edge of the top plate covers the full width of the front end edge of the operating body in the left-right direction; when the operating body slides backward in the front-rear direction to a second preset position with respect to the insulator, the rear end edge of the top plate does not cover the full width of the front end edge of the operating body in the left-right direction.

The butt joint section comprises an upper section part formed by the forward extension of one end, connected with the connecting section, of the operation section and a lower section part formed by the forward extension of one end, connected with the connecting section, of the fixing section, wherein the upper section part and the lower section part are spaced in the up-down direction and are open forwards;

an upper section accommodating groove is formed in the inner side surface of the top plate at the position of the butt joint cavity, and at least part of the upper section part is accommodated in the upper section accommodating groove;

the inner side surface of the bottom plate at the position of the butt joint cavity is provided with a lower section accommodating groove, and at least part of the lower section part is fixed in the lower section accommodating groove.

Compared with the prior art, the utility model has the beneficial effects that: can resist vibration and prevent the operation body from falling off.

Drawings

Fig. 1 is a schematic perspective view of the board end connector of the present utility model assembled to a flat cable module, and also shows a docking module, wherein the operating body is located at a second predetermined position.

Fig. 2 is a schematic perspective view of fig. 1 from another angle.

Fig. 3 is a partially exploded perspective view of the board end connector of the present utility model, particularly showing a perspective view of the insulator after separation, wherein the showing angle is a top view angle.

Fig. 4 is a front view of the board end connector of the present utility model.

Fig. 5 is a rear view of the board end connector of the present utility model.

Fig. 6 is an exploded perspective view of the board end connector of the present utility model.

Fig. 7 is a cross-sectional view taken along line A-A of fig. 5.

Fig. 8 is a schematic perspective view of fig. 1 from a further angle.

Fig. 9 is a schematic perspective view of a locking tab of the board end connector of the present utility model.

Fig. 10 is a schematic perspective view of a terminal of the board end connector of the present utility model.

Fig. 11 is a side view of a terminal of the board end connector of the present utility model.

Fig. 12 is a sectional view taken along line B-B of fig. 4.

Fig. 13 is a sectional view taken along line C-C of fig. 5.

Fig. 14 is a sectional view taken along line D-D of fig. 4.

Fig. 15 is a cross-sectional view taken along line E-E of fig. 4.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the present utility model, all the directions are uniformly referred to in fig. 1, wherein the direction of the X axis is defined as the front-back direction, and the forward direction of the X axis is the front direction; defining the direction of the Y axis as the up-down direction, and the positive direction of the Y axis as the up direction; the direction in which the Z axis is located is defined as the left-right direction.

Referring to fig. 1 to 15, a board end connector according to the present utility model includes: the insulator 1, two terminals 2 fixed in the insulator 1, two locking pieces 4 fixed at both end positions of the insulator 1 in the width direction, and an operating body 3 slidably assembled at the rear end position of the insulator 1. The board-end connector of the present utility model is generally assembled inside an electronic device, and is used for assembling to a flat cable module 1 (such as a flexible circuit board) to achieve the docking with a docking module 6 (such as an FPCB, which is called Flexible Printed Circuit Board in full, or simply FPCB or FPC, or a flexible printed circuit board).

The insulator 1 is made of an insulating material, and includes a top plate 11, a bottom plate 12 vertically opposite to the top plate 11, two side plates 13 connecting the top plate 11 and the bottom plate 12 in the left-right direction, and a middle partition 14. The top plate 11, the bottom plate 12, and the two side plates 13 together enclose a functional space (not numbered), and the middle partition 14 separates the functional space in the front-rear direction into a docking chamber 1001 that is open forward and an operation chamber 1002 that is located at the rear end of the docking chamber 1001.

The insulator 1 is provided with two terminal grooves (not numbered) extending in the front-rear direction, and the terminal grooves include an upper-stage accommodating groove 111 formed on the inner side surface of the top plate 11 at the position of the abutting chamber 1001, a lower-stage accommodating groove 112 formed on the inner side surface of the bottom plate 12 at the position of the abutting chamber 1001, a rear-stage accommodating groove 113 formed on the inner side surface of the bottom plate 12 at the position of the operating chamber 1002, and a fixing groove 114 formed on the partition 14. The fixing groove 114 communicates with the upper-stage accommodating groove 111, the lower-stage accommodating groove 112, and the rear-stage accommodating groove 113 in the front-rear direction. The inner surface of the bottom plate 12 at the position of the operation cavity 1002 is further formed with a first sliding limit groove 102 extending in the front-rear direction, and the rear receiving groove 113 communicates upward with the first sliding limit groove 102.

Referring to fig. 5, 7 and 8, the side plate 13 of the insulator 1 is recessed on the inner surface of the operation cavity 1002, and a side-slip limiting groove 101 communicating with the operation cavity 1002 along the left-right direction is formed. The outside of the side-slip stopper groove 101 (refer to the side away from the operation cavity 1002 in the left-right direction) is formed with a locking piece assembling groove 104 (refer to fig. 5) communicating with the side-slip stopper groove 101 in the left-right direction. The outside of the locking piece assembly groove 104 (which means the side away from the operation cavity 1002 in the left-right direction) is formed with a relief gap 105 communicating with the locking piece assembly groove 104. The locking plate 4 is inserted and assembled into the locking plate assembling groove 104 from back to front, the sideslip limiting groove 101 is positioned at one side of the locking plate 4 close to the operating cavity 1002 along the left-right direction, and the yielding gap 105 is positioned at one side of the locking plate 4 far away from the operating cavity 1002 along the left-right direction. The sideslip limit groove 101, the lock plate assembly groove 104 and the relief gap 105 all extend in the front-rear direction.

Referring to fig. 7, 8 and 14, the top plate 11 includes a top plate front section 1101 at the front end and a top plate rear section 1102 at the rear end along the front-rear direction, with the connecting section 23 as a boundary; the base plate 12 includes a base plate front section 1201 at a front end and a base plate rear section 1202 at a rear end; the side plate 13 includes a side plate front section 1301 at the front end and a side plate rear section 1302 at the rear end. Referring to fig. 6 in combination with fig. 14, the length of the rear top plate 1102 is smaller than that of the rear bottom plate 1202 in the front-rear direction, so that the operation cavity 1002 is opened backward and upward, which is convenient for assembling and driving the operation body 3 to move in the front-rear direction.

Referring to fig. 15, the two ends of the bottom plate 12 in the left-right direction are protruded into the docking chamber 1001 near the open end to form an anti-back protrusion 106, and the anti-back protrusion 106 is used for locking with a mating structure on the docking module 6 to prevent the docking module 6 from being withdrawn from the docking chamber 1001. For example, as shown in fig. 1, the two sides of the docking module 6 may form a notch 61, and the anti-back-out portion 106 is correspondingly locked and fixed with the notch 61.

Referring to fig. 5 to 9, the locking piece 4 is formed by processing a metal sheet, and includes a flat plate-shaped main body 40, a locking lug 43 formed by folding back a rear end edge of the main body 40, an elastic locking arm 41 formed by tearing an intermediate position of the main body 40, and a bending portion 42 formed by tearing and bending the main body 40 at a rear end position of the elastic locking arm 41. The main body 40 is inserted and assembled into the locking plate assembly groove 104, and the locking lug 43 is inserted into the side plate 13 (corresponding mounting groove, not numbered). The elastic buckle arm 41 extends in the front-rear direction, and both ends are integrally connected to the main body 40 in a fixed beam shape. The elastic latch arm 41 is formed with a latch 411 protruding into the sideslip limiting groove 101 by punching and bending at a middle position in the front-rear direction. The middle of the elastic buckle arm 41 can elastically deform in the left-right direction, and the yielding gap 105 is used for yielding the elastic deformation of the elastic buckle arm 41.

The terminal 2 is inserted and assembled into the terminal groove from back to front, and comprises a flat plate-shaped connecting part 26, a terminal butting section 27 formed by extending the rear end of the connecting part 26 backwards, and two first functional parts 201 formed by bending and extending the two end edges of the connecting part 26 upwards and forwards along the left-right direction.

The first functional part 201 includes an operation section 24 extending in the front-rear direction, a fixing section 25 extending in the front-rear direction and spaced relatively from the operation section 24 in the up-down direction, a connecting section 23 connecting the operation section 24 with the front end of the fixing section 25 and extending in the up-down direction, an upper section 21 formed by further extending forward in the front-rear direction of one end of the operation section 24 connected with the connecting section 23, and a lower section 22 formed by further extending forward in the front-rear direction of one end of the fixing section 25 connected with the connecting section 23. The operation section 24 and the fixed section 25 are relatively spaced in the up-down direction to form a spacing space 20 which is opened backward, and the spacing space 20 is communicated with the operation cavity 1002. The upper and lower sections 21 and 22 are spaced apart from each other in the up-down direction to form a fitting space (not shown) which is open forward and communicates with the operation chamber 1002.

Further, the upper portion 21 is correspondingly accommodated in the upper accommodating groove 111. The lower portion 22 is correspondingly accommodated in the lower accommodating groove 112. The connecting section 23 is correspondingly accommodated in the fixing groove 114. The connecting portion 26 is correspondingly accommodated in the rear-stage accommodation groove 113. The terminal abutment section 27 protrudes rearwardly beyond the insulator 1. Wherein, a plurality of piercing parts 271 are further formed by bending and extending the two side edges of the terminal butt-joint section 27, and the plurality of piercing parts 271 on one side of the terminal butt-joint section 27 and the plurality of piercing parts 271 on the other side of the terminal butt-joint section 27 are arranged in a staggered manner along the front-rear direction. The piercing portion 271 is used for piercing the flat cable module 1 (such as a flexible circuit board) and realizing fixation and signal transmission.

Referring to fig. 1 to 12, the operating body 3 is slidably disposed in the operating cavity 1002 of the insulator 1, and the operating body 3 includes a base 30, side sliding protrusions 301 formed by protruding from both ends of the base 30 in the left-right direction, two pressing rods 302 formed by further extending forward from the front end of the base 30, and a rib 303 protruding downward from the lower surface of the base 30 and extending in the front-rear direction. The bending portion 42 is located at the rear end surface of the side sliding protrusion 301 to limit excessive rearward movement of the operating body 3.

The side sliding protruding portion 301 protrudes into the side sliding limiting groove 101 to realize sliding guiding of the operating body 3 along the front-rear direction, and also has a function similar to a sliding rail, and meanwhile, sliding positioning along the up-down direction is realized, so that the contact limiting area of the operating body 3 and the insulator 1 can be increased, the contact stability of the operating body 3 and the insulator 1 is improved, and the risk that the operating body 3 is separated from the insulator 1 due to vibration of the board end connector is reduced. The outer surface of the side-slip protrusion 301 (i.e., the outer end surface of the side-slip protrusion 301 in the left-right direction) is formed in a wavy shape (e.g., wavy or zigzag shape, etc.) to form the latch fitting portion 31, and the latch portion 411 is elastically fitted to the latch fitting portion 31 in the left-right direction to achieve multi-position locking in which the operating body 3 slides in the front-rear direction.

Two of the struts 302 project forwardly through the septum 14 into the docking chamber 1001, preferably at opposite ends in the left-right direction adjacent the docking chamber 1001. When the docking module 6 (such as FPCB) is inserted into the docking cavity 1001, the pressing rod 302 is pressed down on the upper surface of the docking module 6, and the rib 303 is slidably limited in the corresponding first sliding limiting groove 102, so that the contact limiting area of the operating body 3 and the insulator 1 can be increased, the contact stability of the operating body 3 and the insulator 1 is improved, and the risk that the operating body 3 is separated from the insulator 1 due to vibration of the board-end connector is reduced. In the present utility model, three ribs 303 are provided, and two ribs 303 located at both ends in the left-right direction are slidably supported on the connection portion 26.

Referring to fig. 12, the front end surface of the base 30 is recessed backward to form an implantation groove 304, and the inner bottom surface of the implantation groove 304 is lower than the front end opening, so as to form a stepped expansion portion 32 (which is substantially represented as a continuous surface with a difference between upper and lower steps). The actuating section 24 protrudes into the implantation recess 304 and is crimped onto the expansion 32. When the expansion portion 32 slides forward in the front-rear direction, the expansion portion 32 forces the operation section 24 and the fixing section 25 to expand (or expand) with the end of the connection section 23 as a fulcrum, so that the upper section 21 and the lower section 22 are linked to shrink (or contract) with the end of the connection section 23 as a fulcrum, and the front end edges of the upper section 21 and the lower section 22 clamp the docking module 6, so as to ensure stable electrical contact. Of course, in other embodiments, the implantation groove 304 may not be provided, and the stepped expansion portion 32 may be directly formed on the upper surface of the base portion 30.

In the utility model, when the operating body 3 slides forward to the first preset position relative to the insulator 1 along the front-back direction (that is, the operating body 3 slides forward to the limit, the docking module 6 is assembled in place), the rear end edge of the top plate 11 covers the full width of the front end edge of the operating body 3 along the left-right direction, so that the contact limiting area of the operating body 3 and the insulator 1 can be increased, the contact stability of the operating body 3 and the insulator 1 is improved, and the risk that the operating body 3 is separated from the insulator 1 due to vibration of the board-end connector is reduced. When the operating body 3 slides backward to the second preset position relative to the insulator 1 in the front-rear direction (that is, the operating body 3 slides backward to the limit, the docking module 6 is not assembled or taken out), the rear end edge of the top plate 11 does not cover the full width of the front end edge of the operating body 3 in the left-right direction, and the rear end edge of the top plate 11 covers only two compression bars 302 in the left-right direction.

To achieve the first preset position and the second preset position, the latch engaging portion 31 forms two recesses (not labeled) spaced in the front-rear direction for matching the latch portion 411 to achieve the locking limitation of the position.

As shown in fig. 10 to 12, the upper section 21 of the terminal 2 is formed with a resilient contact section 231 extending downward and backward in a folded manner at an end away from the connecting section 23. And a gap part is arranged between the elastic contact section and the upper section part along the up-down direction. The elastic contact section 231 is formed with two contact bumps 232 protruding into the docking cavity 101, and the two contact bumps 232 are disposed at intervals along the front-rear direction. The upper portion 21 is swingable in the up-down direction in the upper accommodating groove 111 with the end of the connecting section 23 as a fulcrum. The elastic contact section 231 can swing in the up-down direction with the connection end with the upper section 21 as a fulcrum. The contact bumps 232 are adapted to make elastic contact with the docking module 6. The lower section 22 is formed with two contact protrusions 221 disposed at intervals in the front-rear direction, the two contact protrusions 221 protrude into the docking chamber 101, and at least one contact protrusion 221 is aligned with one contact bump 232 in the up-down direction (in a preferred embodiment of the present utility model, the two contact protrusions 221 are aligned with both contact bumps 232 in the up-down direction). The unique structure of the terminal 2, especially the unique structural design of the first functional part 201, can improve the contact reliability between the terminal 2 and the docking module 6 (such as FPCB), realize that the contact point of the contact bump 232, which elastically contacts the docking module 6, is opposite to the supporting point of the contact protrusion 221 for supporting the docking module 6, and has even stress, so as to prevent the docking module 6 from deforming and reduce the contact reliability.

In the present utility model, the upper section 21 and the lower section 22 are collectively referred to as a butt section, that is, the butt section may be either one or both of the upper section 21 and the lower section 22. In addition, the connecting section 23 extends in the up-down direction and is offset in the front-back direction to form a non-straight shape, like a crank or an S-shape, to increase the length of the arm and the elasticity of the corresponding position. In the present utility model, the free end of the operation section 24 is also provided with a contact protrusion (not numbered) protruding downward for contacting with the expansion section 32, and the extension length of the upper section 21 is substantially the same as the extension length of the operation section 24 (may be expressed as that, in the front-rear direction, the effective length from the contact bump 232 at the front end of the upper section 21 to the connection section 23 is substantially the same as the effective length from the contact protrusion to the connection section 23), so as to ensure that the moment arm is substantially the same, improve the stress balance of each part of the terminal 2 during the sliding process of the socket body 3, and improve the structural stability and the service life of the whole terminal 2.

Referring to fig. 11 to 15 in combination with fig. 6, in the present utility model, a pressing protrusion 3021 is formed at a front end of the pressing rod 302 in a protruding manner. When the operating body 3 is slid forward in the front-rear direction to a first preset position, the pressing protrusions 3021 are located in front of the two contact bumps 232; when the operating body 3 is slid backward in the front-rear direction to the second preset position, the pressing protrusion 3021 is located rearward of at least one of the contact bumps 232. Also, when the operation body 3 is slid forward in the front-rear direction to the first preset position, the pressing protrusions 3021 are located in front of the two contact protrusions 221; when the operating body 3 is slid backward in the front-rear direction to the second preset position, the pressing protrusion 3021 is located rearward of at least one of the contact protrusions 221. In the present utility model, the level passing through the lowest point of the pressing protrusion 3021 in the up-down direction is used as a reference plane, and the highest point of the protrusion 106 in the up-down direction is positioned on the reference plane. So can ensure the hasp stability to butt joint module 6, prevent the one end of butt joint module 6 by upwards pulling after, the risk that butt joint module 6 breaks away from the board end connector.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A board end connector, comprising:

2. The board end connector of claim 1 wherein: the insulator is sunken to form sideslip spacing groove on the medial surface at the both ends of operation chamber along left and right directions, sideslip spacing groove extends along the fore-and-aft direction, the both ends of operation body along left and right directions protrusion is formed with sideslip bulge to sideslip spacing inslot.

3. The board end connector of claim 2 wherein: the elastic buckle arm part protrudes into the sideslip limiting groove to form a locking part, the outer surface of the sideslip protruding part is shaped like a fluctuation to form the locking matching part, and the locking part is elastically matched to the locking matching part along the left-right direction to realize multi-position locking of the operation body sliding along the front-back direction.

4. The board end connector of claim 2 wherein: and a yielding gap is formed on one side, far away from the operation cavity, of the elastic buckling arm part along the left-right direction, and the yielding gap is communicated with the sideslip limiting groove along the left-right direction and is used for yielding elastic deformation of the elastic buckling arm part.

5. The board end connector of claim 2 wherein: the locking plate is provided with a bending part protruding into the sideslip limiting groove, and the bending part is positioned on the rear end face of the sideslip protruding part.

6. The board end connector of claim 2 wherein: the elastic buckling arm part is formed by tearing a locking plate and extends along the front-back direction, two ends of the elastic buckling arm part are integrally connected with the locking plate to form a fixed beam shape, and the locking part is formed by protruding the elastic buckling arm part along the middle of the front-back direction.

7. The board end connector of claim 1, comprising:

the first sliding limiting groove is formed on the inner surface of the bottom plate at the position of the operation cavity and extends along the front-back direction; the lower surface of the operating body is convexly provided with a convex rib part which is limited in the first sliding limiting groove in a sliding way.

8. The board end connector of claim 7 wherein: the first functional parts are arranged in two, the two first functional parts are opposite in the left-right direction and are arranged at intervals, and the fixed section of one first functional part is integrally connected with the fixed section of the other first functional part through the connecting part.

9. The board end connector of claim 8 wherein: the connecting part extends into a sheet shape along the front-back direction and the left-right direction, and the left side edge and the right side edge of the connecting part are respectively connected with the lower edges of the two first functional parts.

10. The board end connector of claim 8 or 9, wherein: the inner surface of the bottom plate at the position of the operation cavity is also provided with a rear section accommodating groove extending along the front-rear direction, the rear section accommodating groove is upwards communicated with the first sliding limiting groove, the connecting part is limited and fixed in the rear section accommodating groove, and the rib part is slidingly borne on the connecting part.

11. The board end connector of claim 1 wherein:

when the operating body slides forwards to a first preset position along the front-back direction relative to the insulator, the rear end edge of the top plate covers the full width of the front end edge of the operating body along the left-right direction;

when the operating body slides backward in the front-rear direction to a second preset position with respect to the insulator, the rear end edge of the top plate does not cover the full width of the front end edge of the operating body in the left-right direction.

12. The board end connector of claim 1 wherein: the butt joint section comprises an upper section part formed by the forward extension of one end, connected with the connecting section, of the operation section along the front-rear direction and a lower section part formed by the forward extension of one end, connected with the connecting section, of the fixing section along the front-rear direction, wherein the upper section part and the lower section part are spaced along the upper-lower direction and are open forwards;