CN220324841U - Lock catch structure, electric connector and connector assembly - Google Patents

Abstract

The utility model discloses a locking structure, an electric connector and a connector assembly, which belong to the field of connectors, and comprise: the locking piece is arranged on the electric connector, the sliding block can move between a locking position and an unlocking position, the moving direction is in angle with the butt joint direction of the electric connector and the butt joint connector, the unlocking piece is arranged on the electric connector, and when the electric connector is unlocked, the sliding block is pushed by the unlocking piece to move from the locking position to the unlocking position so as to push the locking piece to unlock the butt joint connector, and the unlocking direction of the unlocking piece is in angle with the unlocking direction of the locking piece. The utility model does not directly press and unlock on the locking piece, so that enough unlocking space is not required to be reserved on the electric connector shell so as to facilitate the finger to enter and unlock. The whole length of the electric connector can be greatly shortened, and the occupied space is reduced.

Description

Lock catch structure, electric connector and connector assembly

Technical Field

The utility model belongs to the field of connectors, and particularly relates to a locking structure, an electric connector and a connector assembly.

Background

The prior lock catch unlocking structure is characterized in that the locking part on the lock catch is separated from the clamping groove of the butt joint connector by pressing the plane on the lock catch. As shown in fig. 7, this approach has the following drawbacks: 1. enough unlocking space needs to be reserved on the electric connector shell so as to facilitate the fingers to enter unlocking, which is not beneficial to the optimal design. 2. The separation of the connector of the electric connector and the connector of the butt connector is realized by adopting two steps (the first step presses the locking piece to make the electric connector and the connector of the butt connector initially separate, and the second step changes the hand-held position to realize the whole taking out), and the unlocking efficiency is low. 3. In order to allow fingers to enter enough space, the product length is increased, and the occupied space is large.

Disclosure of Invention

The present utility model is directed to a latch structure, an electrical connector and a connector assembly, which overcome at least one of the above-mentioned drawbacks of the prior art.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a lock catch structure, which comprises: the locking piece is arranged on the electric connector, when the electric connector is in butt joint with the butt joint connector, the electric connector and the butt joint connector are locked together by the locking piece, the sliding block can move between a locking position and an unlocking position, the moving direction is in angle with the butt joint direction of the electric connector and the butt joint connector, the unlocking piece is arranged on the electric connector, when in unlocking, the unlocking piece pushes the sliding block to move from the locking position to the unlocking position so as to push the locking piece to realize unlocking with the butt joint connector, and the unlocking direction of the unlocking piece is in angle with the unlocking direction of the locking piece.

Preferably, the unlocking direction of the unlocking member is 90 ° to the unlocking direction of the locking member.

Preferably, the latch comprises a base, a first elastic arm and a buckling part, the base is provided with a first side wall, the first side wall is provided with a first opening, one end of the first elastic arm is a fixed end and is fixed on an inner side wall of the first opening, the other end of the first elastic arm is a free end, and the buckling part is arranged on an outer side wall of the free end.

Preferably, the first elastic arm comprises a first fixing part, a bending part and a first pressing part, the first fixing part is fixed on an inner side wall of the first opening, the first pressing part is connected with the first fixing part through the bending part, the first pressing part and the first fixing part are arranged in an angle, and when the first elastic arm is unlocked, the sliding block abuts against the first pressing part and pushes the first pressing part to incline towards one side far away from the first fixing part.

Preferably, one end of the first side wall is bent to form a first mounting arm, and the first mounting arm is mounted on the electric connector and forms a slideway for the sliding block to move with the electric connector.

Preferably, the base has a second side wall, and one end of the second side wall is bent to form a second mounting arm, and the second mounting arm is mounted on the electrical connector.

Preferably, the slider has a ramp, and the unlocking member provides a force to the slider to move from the lock position to the unlock position by pushing the ramp in a mating direction of the electrical connector and the mating connector.

Preferably, the unlocking piece is formed by bending the shell of the electric connector outwards.

Preferably, the outer side wall of the first side wall has a pretensioning strip.

The utility model also provides an electric connector which comprises the lock catch structure.

Preferably, still include terminal group, the insulator, casing, and wire rod, terminal group sets up in the insulator, the insulator sets up in the latch fitting, the latch fitting is fixed in the casing, and extend outside the casing, form the slide that supplies the slider to remove between the part of latch fitting in the casing and the casing, the one end and the terminal group electricity of wire rod are connected, outside the casing was worn out to the other end of wire rod, the wire rod the wire direction of being out of line is the angle setting with the butt joint direction of terminal group and butt joint connector, the second opening has been seted up to a side wall of casing, the edge outside bending of one side of latch fitting is kept away from to the second opening forms the unblock, the one end of slider extends to the second opening, and cooperates with the unblock.

Preferably, the wire connecting device further comprises an inner die, wherein the inner die is arranged in the shell and at least covers the connecting area of the wire and the terminal group.

Preferably, the inner die integrally connects the wire, the terminal group, the insulator, the locking piece, and the housing.

Preferably, the terminal set includes a terminal fixing member and a plurality of conductive terminals fixed to the terminal fixing member, the terminal fixing member being disposed in the insulator.

Preferably, the conductive terminal includes a first contact portion electrically connected with the mating connector, a second contact portion electrically connected with the wire, and a connection section connecting the first contact portion and the second contact portion.

Preferably, the insulator has an installation space for installing the terminal fixing member inside, the latch member includes a base having a first side wall, a first opening is provided on the first side wall, a top wall opening of the insulator is provided, and a docking space for inserting a circuit board of the docking connector is enclosed between the latch member and the base, the first contact portion is located in the docking space, and the docking space is communicated with the first opening.

Preferably, the unlocking piece comprises a second fixing part, an inclined part and a second pressing part, wherein the second fixing part is fixed at the edge of one side, far away from the locking piece, of the second opening, the second pressing part is connected with the second fixing part through the inclined part, and when the unlocking piece is unlocked, the second pressing part is abutted against the sliding block and pushes the sliding block to move from the locking position to the unlocking position so as to push the locking piece to unlock the butt connector.

Preferably, the sliding block comprises a sliding part, a first protruding part and a second protruding part, the sliding part is in sliding fit with the slideway, one end, close to the second opening, of the sliding part is provided with the first protruding part, one end, far away from the second opening, of the sliding part is provided with the second protruding part, one side wall of the shell is provided with a first limit groove and a second limit groove, the first limit groove and the second limit groove are communicated with the slideway, the first protruding part extends into the first limit groove, and the second protruding part extends into the second limit groove.

The utility model also provides a connector assembly, which comprises the electric connector and a butt joint connector, wherein the butt joint connector is in butt joint with the electric connector.

The beneficial effects of the utility model are as follows:

1. since the unlocking is not directly pressed on the locking piece, enough unlocking space is not required to be reserved on the electric connector shell so that fingers can enter the unlocking conveniently. The whole length of the electric connector can be greatly shortened, and the occupied space is reduced.

2. Because the unlocking direction of the unlocking piece is consistent with the direction that the electric connector exits from the butt joint connector, the unlocking piece can be unlocked completely by pushing the electric connector to the right after being initially unlocked by pressing the unlocking piece without changing the handheld position, the unlocking is convenient, and the unlocking efficiency is high.

3. By the arrangement of the bending part, the deformability of the first pressing part is improved.

4. The unlocking piece pushes the inclined surface to the right, and the direction of the force is changed through the inclined surface so as to provide the force for pushing the sliding block to move downwards.

5. Through the setting of pretension strip, reduce the clearance of electric connector and butt joint connector, can eliminate mechanical noise and rock, further improve the reliability, through exerting pretension, can reduce the deflection of relative external load to increase rigidity.

6. The distance of the downward movement of the first protruding part is limited through the first limiting groove, and the distance of the upward movement of the second protruding part is limited through the second limiting groove. This arrangement ensures that the slider moves between the locked and unlocked positions without excessive movement.

Drawings

Fig. 1 is a schematic front view of a first embodiment of the present utility model.

Fig. 2 is a schematic perspective view of a first embodiment of the present utility model.

Fig. 3 is a schematic top view of a first embodiment of the present utility model.

FIG. 4 is a schematic view of the cross-sectional view B-B of FIG. 3 (with the slider in the latched position).

Fig. 5 is a schematic view of a state structure of a slider in an unlocked position according to an embodiment of the present utility model.

Fig. 6 is a schematic perspective view of a locking element according to an embodiment of the utility model.

Fig. 7 is a schematic perspective view of a prior art electrical connector.

Fig. 8 is a schematic top view of a second embodiment of the present utility model.

Fig. 9 is a schematic view of the cross-sectional structure of fig. 8C-C.

Fig. 10 is a schematic left-view structure of a second embodiment of the present utility model.

Fig. 11 is a schematic perspective view of a two-terminal set according to an embodiment of the present utility model.

Fig. 12 is a schematic perspective view of a slider according to the second embodiment of the present utility model.

The marks in the drawings are: 1-locking piece, 2-sliding block, 3-unlocking piece, 11-base, 12-first elastic arm, 13-locking part, 121-first fixing part, 122-bending part, 123-first pressing part, 111-first side wall, 112-first opening, 1111-first mounting arm, 4-sliding rail, 113-second side wall, 1131-second mounting arm, 24-inclined plane, 114-pretensioning strip, 5-terminal group, 6-insulator, 7-shell, 8-wire, 71-second opening, 9-inner die, 51-terminal fixing part, 52-conductive terminal, 521-first contact part, 522-second contact part, 523-connecting section, 61-mounting space, 62-abutting space, 31-second fixing part, 32-tilting part, 33-second pressing part, 21-sliding part, 22-first protruding part, 23-second protruding part, 72-first limit groove, 73-second limit groove.

Detailed Description

The utility model will now be further described with reference to the drawings and detailed description.

What is not described in detail in this specification is prior art known to those skilled in the art. In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or refer to the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Embodiment one:

as shown in fig. 1 to 6, the latch structure provided in this embodiment includes: a locking piece 1, a sliding block 2 and an unlocking piece 3.

The locking piece 1 is arranged on the electric connector, and when the electric connector is in butt joint with the butt joint connector, the locking piece 1 locks the electric connector and the butt joint connector together. The mating direction of the electrical connector and the mating connector of the present embodiment is defined as A1-A1 (left-right direction).

The slider 2 is movable between a locking position and an unlocking position in a direction angularly disposed with respect to the mating direction of the electrical connector and the mating connector. The moving direction of the slider 2 of the present embodiment is defined as A2-A2 (up-down direction).

The unlocking piece 3 is arranged on the electric connector. When the connector is unlocked, the unlocking piece 3 is pressed, so that the unlocking piece 3 pushes the sliding block 2 to move from the locking position to the unlocking position, the locking piece 1 is pushed to unlock the connector, and the unlocking direction of the unlocking piece 3 is arranged at an angle with the unlocking direction of the locking piece 1. The unlocking direction of the unlocking member 3 of the present embodiment is the same as A1-A1, and the unlocking direction of the locking member 1 is the same as A2-A2. The unlocking direction of the unlocking piece 3 is 90 degrees to the unlocking direction of the locking piece 1.

The utility model changes the disadvantage (from top to bottom) caused by the traditional way of directly pressing the locking piece 1 by fingers. The unlocking piece 3 is pressed along the withdrawal direction (from left to right) of the electric connector, the unlocking piece 3 is pressed to push the sliding block 2 to slide from top to bottom, the sliding block 2 is used for pushing the locking piece 1 downwards, the locking piece 1 is separated from the clamping groove of the butt joint connector, the preliminary unlocking of the electric connector and the butt joint connector is realized, meanwhile, the unlocking piece 3 is pressed from left to right, and the electric connector is withdrawn from the butt joint connector, so that the hand-held position is not required to be changed, the electric connector is pushed to the right after the preliminary unlocking of the unlocking piece 3 is pressed, the complete unlocking can be realized, the unlocking is convenient, and the unlocking efficiency is high. And since the unlocking is not directly pressed on the latch 1, there is no need to reserve a sufficient unlocking space on the electrical connector housing 7 to facilitate the entry of a finger into unlocking. The whole length of the electric connector can be greatly shortened, and the occupied space is reduced.

The latch 1 includes a base 11, a first elastic arm 12, and a latch portion 13. The base 11 has a first side wall 111 (upper side wall), the first side wall 111 is provided with a first opening 112, one end of the first elastic arm 12 is a fixed end, the first elastic arm is fixed on an inner side wall of the first opening 112, a front end of the first elastic arm 12 is a free end, and the fastening portion 13 is disposed on an outer side wall of the free end. The sliding block 2 pushes downwards to act on the first elastic arm 12, so that the free end is inclined downwards, the buckling part 13 is driven to move downwards to be away from the clamping groove of the butt connector, and the electric connector and the butt connector are unlocked preliminarily.

The first elastic arm 12 includes a first fixing portion 121, a bending portion 122, and a first pressing portion 123. The first fixing portion 121 is fixed on an inner side wall of the first opening 112, the first pressing portion 123 is connected with the first fixing portion 121 through the bending portion 122, and the first pressing portion 123 is disposed at 90 ° with the first fixing portion 121. When unlocked, the slider 2 is pressed against the first pressing portion 123, and the first pressing portion 123 is pushed by the force to tilt downward. By providing the bending portion 122, the deformability of the first pressing portion 123 is improved.

The right end of the first sidewall 111 is bent upwards to form a first mounting arm 1111, and the first mounting arm 1111 is mounted in the electrical connector, and forms a slideway 4 between the first mounting arm 1111 and the electrical connector for the sliding block 2 to move. The base 11 has a second side wall 113 (lower side wall), and a right end of the second side wall 113 is bent downward to form a second mounting arm 1131, and the second mounting arm 1131 is mounted on the electrical connector. The catch piece 1 is mounted to the electrical connector by the first mounting arm 1111 and the second mounting arm 1131.

Wherein the upper left side of the slider 2 has a slope 24, and the unlocking member 3 pushes the slope 24 rightward, and changes the direction of the force through the slope 24 to provide the slider 2 with a force pushing it downward.

Wherein the unlocking member 3 is formed by bending the housing 7 of the electrical connector outwards.

Wherein, the outer side wall of the first side wall 111 is provided with a pre-tightening strip 114. By providing the pre-tightening strip 114, the clearance between the electrical connector and the mating connector is reduced, mechanical noise and rattle can be eliminated, reliability is further improved, and the amount of deformation relative to external loads can be reduced by applying the pre-tightening, thereby increasing rigidity.

Embodiment two:

as shown in fig. 8 to 12, the present embodiment also provides an electrical connector including the latch structure of the first embodiment, the terminal group 5, the insulator 6, the housing 7, the inner die 9, and the wires 8. The electrical connector of the present embodiment is a cable connector.

The terminal group 5 is arranged in the insulator 6, the insulator 6 is arranged in the locking piece 1, the locking piece 1 is fixed in the shell 7 and extends out of the shell 7, the insulator 6 and the part of the locking piece 1 extending out of the shell 7 are mutually perpendicular to the shell 7, a slide way 4 for the sliding block 2 to move is formed between the part of the locking piece 1 located in the shell 7 and the shell 7, the lower end of the wire rod 8 is electrically connected with the terminal group 5, the upper end of the wire rod 8 penetrates out of the shell 7, the wire outlet direction of the wire rod 8 is arranged at 90 degrees with the butting direction of the terminal group 5 and the butting connector, and the wire outlet is from bottom to top. The left side wall of the shell 7 is provided with a second opening 71, the edge of the upper side of the second opening 71 is bent outwards to form an unlocking piece 3, and the upper end of the sliding block 2 extends to the second opening 71 and is matched with the unlocking piece 3. The inner die 9 is disposed in the housing 7 and covers at least the connection region between the wire 8 and the terminal group 5. Specifically, the inner die 9 integrally connects the wire 8, the terminal group 5, the insulator 6, the locking piece 1, and the housing 7. During butt joint, the PCB of the butt joint connector is inserted into the terminal group 5, and the buckling part 13 is clamped into the clamping groove on the butt joint connector, so that butt joint locking is realized. The housing 7 of the present embodiment is a plastic housing 7 with elastic deformation. The latch element 1 is made of metal and has elastic deformation capability.

The terminal set 5 includes a terminal fixing member 51, and a plurality of conductive terminals 52, wherein the plurality of conductive terminals 52 are fixed to the terminal fixing member 51, and the terminal fixing member 51 is disposed in the insulator 6. The conductive terminal 52 includes a first contact portion 521 electrically connected with the mating connector, a second contact portion 522 electrically connected with the wire 8, and a connection section 523 connecting the first contact portion 521 and the second contact portion 522. The insulator 6 has an installation space 61 for installing the terminal fixing member 51 therein, and an opening in a top wall of the insulator 6 is provided, and a mating space 62 into which a circuit board of a mating connector is inserted is defined between the base 11 and the insulator, and the first contact 521 is located in the mating space 62, and the mating space 62 communicates with the first opening 112. The docking space 62 is located outside the housing 7. Therefore, the electrical connector only needs the length of the docking space 62 (necessary for docking) plus the length of the housing 7 itself (necessary for mounting the internal structure), without adding an external mold to the length direction of the housing 7 or adding the length of the housing 7 to provide for unlocking. The length of the electrical connector is greatly reduced. The overall thickness of the insulator 6 is reduced due to the arrangement of the top wall opening of the insulator 6. Is electrically connected to the PCB contacts of the mating connector by conductive terminals 52.

The unlocking member 3 includes a second fixing portion 31, an inclined portion 32, and a second pressing portion 33, wherein the second fixing portion 31 is fixed to an upper edge of the second opening 71, and the second pressing portion 33 is connected to the second fixing portion 31 through the inclined portion 32. During unlocking, the second pressing portion 33 is pressed leftwards, so that the second pressing portion 33 moves rightwards to be abutted against the sliding block 2, the second pressing portion 33 is continuously pressed leftwards, and the sliding block 2 is pushed by the second pressing portion 33 to move downwards from top to bottom, so that the locking piece 1 is pushed to unlock the butt connector.

The sliding block 2 includes a sliding portion 21, a first protruding portion 22, and a second protruding portion 23, the sliding portion 21 is slidably matched with the sliding way, the upper end, close to the sliding portion 21, of the sliding portion 21 is provided with the first protruding portion 22, the lower end of the sliding portion 21 is provided with the second protruding portion 23, the front side wall of the housing 7 is provided with a first limiting groove 72 and a second limiting groove 73, the first limiting groove 72 and the second limiting groove 73 are both communicated with the sliding way 4, the first protruding portion 22 extends into the first limiting groove 72, and the second protruding portion 23 extends into the second limiting groove 73. The distance of the downward movement of the first protrusion 22 is limited by the first limiting groove 72, and the distance of the upward movement of the second protrusion 23 is limited by the second limiting groove 73. This arrangement ensures that the slider 2 moves between the lock position and the unlock position without excessive movement.

Embodiment III:

the present embodiment also provides a connector assembly including the electrical connector of the second embodiment, and a mating connector (not shown) that mates with the electrical connector. When in butt joint, the buckling part 13 is buckled into a clamping groove (not shown) of the butt joint connector. The mating connector of the present embodiment is a board end connector.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (19)

1. The hasp structure, its characterized in that includes:

a locking piece (1) arranged on the electric connector;

the sliding block (2) can move between a locking position and an unlocking position, and the moving direction is arranged at an angle with the butting direction of the electric connector and the butting connector;

the unlocking piece (3) is arranged on the electric connector, and when the electric connector is unlocked, the unlocking piece (3) pushes the sliding block (2) to move from the locking position to the unlocking position so as to push the locking piece (1) to unlock the butt joint connector, and the unlocking direction of the unlocking piece (3) and the unlocking direction of the locking piece (1) are arranged at an angle.

2. The latch mechanism of claim 1, wherein:

the unlocking direction of the unlocking piece (3) is 90 degrees with the unlocking direction of the locking piece (1).

3. The latch mechanism of claim 1, wherein:

the lock catch piece (1) comprises a base (11), a first elastic arm (12) and a catch part (13);

the base (11) is provided with a first side wall (111), the first side wall (111) is provided with a first opening (112), one end of the first elastic arm (12) is a fixed end and is fixed on an inner side wall of the first opening (112), and the other end of the first elastic arm (12) is a free end;

the buckling part (13) is arranged on the outer side wall of the free end.

4. A latch mechanism according to claim 3, wherein:

the first elastic arm (12) comprises a first fixing part (121), a bending part (122) and a first pressing part (123);

the first fixing part (121) is fixed on an inner side wall of the first opening (112), the first pressing part (123) is connected with the first fixing part (121) through the bending part (122), and the first pressing part (123) and the first fixing part (121) are arranged at an angle;

when the lock is unlocked, the sliding block (2) is propped against the first pressing part (123) and is forced to push the first pressing part (123) to incline towards one side far away from the first fixing part (121).

5. A latch mechanism according to claim 3, wherein:

one end of the first side wall (111) is bent to form a first mounting arm (1111), and the first mounting arm (1111) is mounted on the electric connector and forms a slideway (4) between the first mounting arm and the electric connector for the sliding block (2) to move.

6. A latch mechanism according to claim 3, wherein:

the base (11) is provided with a second side wall (113), one end of the second side wall (113) is bent to form a second mounting arm (1131), and the second mounting arm (1131) is mounted on the electric connector.

7. The latch mechanism of claim 1, wherein:

the slider (2) has a ramp (24), and the unlocking member (3) provides a force to the slider (2) to move from the lock position to the unlock position by pushing the ramp (24) in a mating direction of the electrical connector and the mating connector.

8. The latch mechanism of claim 1, wherein:

the unlocking piece (3) is formed by bending a shell (7) of the electric connector outwards.

9. A latch mechanism according to claim 3, wherein:

the outer side wall of the first side wall (111) is provided with a pre-tightening strip (114).

10. An electrical connector comprising the latch structure of any one of claims 1-9.

11. The electrical connector of claim 10, wherein:

the electric power cable also comprises a terminal group (5), an insulator (6), a shell (7) and wires (8);

the terminal group (5) is arranged in the insulator (6);

the insulator (6) is arranged in the lock catch piece (1), the lock catch piece (1) is fixed in the shell (7) and extends out of the shell (7), and a slideway (4) for the sliding block (2) to move is formed between the part of the lock catch piece (1) in the shell (7) and the shell (7);

one end of the wire rod (8) is electrically connected with the terminal group (5), the other end of the wire rod (8) penetrates out of the shell (7), and the wire outlet direction of the wire rod (8) and the butt joint direction of the terminal group (5) and the butt joint connector are arranged at an angle;

a second opening (71) is formed in one side wall of the shell (7), the edge of one side, away from the locking piece (1), of the second opening (71) is bent outwards to form the unlocking piece (3), and one end of the sliding block (2) extends to the second opening (71) and is matched with the unlocking piece (3).

12. The electrical connector of claim 11, wherein:

the wire rod is characterized by further comprising an inner die (9), wherein the inner die (9) is arranged in the shell (7) and at least covers the connection area of the wire rod (8) and the terminal group (5).

13. The electrical connector of claim 12, wherein:

the inner die (9) is used for connecting the wire rod (8), the terminal group (5), the insulator (6), the locking piece (1) and the shell (7) into a whole.

14. The electrical connector of claim 11, wherein:

the terminal group (5) comprises a terminal fixing piece (51) and a plurality of conductive terminals (52);

the plurality of conductive terminals (52) are fixed on the terminal fixing piece (51), and the terminal fixing piece (51) is arranged in the insulator (6).

15. The electrical connector of claim 14, wherein:

the conductive terminal (52) includes a first contact portion (521) electrically connected with the mating connector, a second contact portion (522) electrically connected with the wire (8), and a connection section (523) connecting the first contact portion (521) and the second contact portion (522).

16. The electrical connector of claim 15, wherein:

an installation space (61) for installing the terminal fixing member (51) is formed inside the insulator (6);

the lock catch piece (1) comprises a base (11), wherein the base (11) is provided with a first side wall (111), and a first opening (112) is formed in the first side wall (111);

the top wall opening of the insulator (6) is arranged, a butting space (62) for inserting a circuit board of the butting connector is formed between the top wall opening of the insulator and the base (11), the first contact part (521) is located in the butting space (62), and the butting space (62) is communicated with the first opening (112).

17. The electrical connector of claim 11, wherein:

the unlocking piece (3) comprises a second fixing part (31), an inclined part (32) and a second pressing part (33);

the second fixing part (31) is fixed at the edge of one side of the second opening (71) away from the locking piece (1);

the second pressing part (33) is connected with the second fixing part (31) through the inclined part (32);

when the connector is unlocked, the second pressing part (33) is abutted against the sliding block (2) and pushes the sliding block (2) to move from the locking position to the unlocking position so as to push the locking piece (1) to unlock the connector.

18. The electrical connector of claim 11, wherein:

the sliding block (2) comprises a sliding part (21), a first protruding part (22) and a second protruding part (23);

the sliding part (21) is in sliding fit with the slideway, a first protruding part (22) is arranged at one end of the sliding part (21) close to the second opening (71), and a second protruding part (23) is arranged at one end of the sliding part (21) far away from the second opening (71);

a first limit groove (72) and a second limit groove (73) are formed in one side wall of the shell (7);

the first limit groove (72) and the second limit groove (73) are communicated with the slideway (4);

the first protruding part (22) extends into the first limit groove (72), and the second protruding part (23) extends into the second limit groove (73).

19. A connector assembly comprising the electrical connector of any one of claims 10-18, and a mating connector that mates with the electrical connector.