Combination and connector

Abstract

The utility model provides an assembly and a connector, and the assembly comprises a housing which is provided with a first positioning cavity, and the inner wall of the first positioning cavity is provided with clamping grooves and first limiting parts which are distributed at intervals; and the clamping jaw is inserted into the first positioning cavity, the clamping jaw has elasticity capable of expanding or contracting in the radial direction, one end of the clamping jaw abuts against the first limiting part, the other end of the clamping jaw is connected with the clamping groove in a buckled mode, and an inverted buckle structure is formed between the clamping jaw and the clamping groove. By arranging the clamping jaw and the shell to be in inverted buckling connection, after the clamping jaw is inserted into the first positioning cavity in the clamping jaw assembling process, the inverted buckling structure can prevent the clamping jaw from reversely moving in the insertion direction, and the first limiting part can prevent the clamping jaw from continuously moving in the insertion direction; in other words, in the first positioning cavity, the clamping jaw can be fixed to the shell through the inverted buckle structure and the first limiting part, so that the clamping jaw does not need to be fixed through a front cover, the number of parts can be reduced, cost is reduced, and assembling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector, especially to a combination and connector. BACKGROUND

[0002] Connectors are widely used in electronic devices to achieve electrical connection and signal transmission between circuit boards and between circuit boards and external devices. With the development of technology, connectors have important applications in many fields such as consumer electronics, automobiles, communications, industrial control, medical devices, etc.

[0003] In related technologies, for fast-mounting connectors, the male head and the female head both use metal clamps to fix cables. In the installation process of the metal clamps, the metal clamps are first installed on the bottom shell, and then the metal clamps are fixed on the bottom shell using a front cover, which is connected to the bottom shell by latching. This installation method has a large number of parts, high cost, and reduces the assembly efficiency of the male head and the female head. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a combination and connector, aiming to solve the problem of low assembly efficiency and high cost of the male head and the female head in related technologies.

[0005] To solve the above technical problems, the utility model provides a combination in the first aspect, which comprises:

[0006] a shell having a first positioning cavity, the inner wall of the first positioning cavity being provided with spaced-apart clamping grooves and a first limiting portion; and

[0007] a clamp inserted into the first positioning cavity, the clamp having elasticity that can expand or contract in the radial direction, one end of the clamp abutting against the first limiting portion, the other end being latched to the clamping groove, and a reverse clamping structure being formed between the clamp and the clamping groove.

[0008] Optionally, the clamp comprises a clamping section and a clamping section connected to the clamping section, the clamping section being latched to the clamping groove, and one end of the clamping section away from the clamping section abutting against the first limiting portion.

[0009] In the reverse direction of the insertion direction of the clamp, the clamping section is inclined outward relative to the clamping section.

[0010] Optionally, the clamping section is provided with a plurality of gaps spaced apart in the circumferential direction, and the clamp further comprises a plurality of clamping pieces corresponding to the plurality of gaps, one end of the clamping piece being connected to the inner wall of the gap, and the other end extending inward relative to the clamping section in the insertion direction of the clamp.

[0011] Optionally, the clamping jaw is provided with a first gap, two ends of the first gap extending to two ends of the clamping jaw respectively.

[0012] Optionally, the clamping section is provided with a plurality of second gaps, the plurality of second gaps being distributed along a circumference.

[0013] Optionally, the shell comprises:

[0014] a main body provided with a receiving cavity;

[0015] a plug-in part provided at one end of the main body and provided with a second positioning cavity, an inner wall of the second positioning cavity being provided with the first limiting part; and

[0016] a positioning part, one end of the positioning part being provided at the plug-in part and the other end of the positioning part having a gap with an inner wall of the receiving cavity, the first positioning cavity and the clamping groove being provided in the positioning part, the positioning part being provided with a plurality of third gaps distributed along a circumference, one end of the third gap extending to an end face of the positioning part away from the plug-in part, and the other end of the third gap extending through the clamping groove.

[0017] Optionally, the combination further comprises a first sealing member, the first sealing member being embedded into the receiving cavity and being in sealing contact with the inner wall of the receiving cavity, the first sealing member being located at one end of the positioning part away from the plug-in part.

[0018] Optionally, the combination further comprises:

[0019] a terminal, one end of the terminal being located in the clamping jaw and the other end of the terminal being located in the second positioning cavity, an outer side of the terminal being provided with a step, the second positioning cavity being provided with a second limiting part away from one end of the second positioning cavity, one end of the step abutting against one end of the clamping jaw away from the clamping groove, and the other end of the step abutting against the second limiting part; and

[0020] a cable, one end of the cable being connected to the terminal and the other end of the cable being sequentially arranged through the first positioning cavity and the receiving cavity.

[0021] The second aspect of the utility model provides a kind of connector, including male head and the female head of plug-in connection in the male head, the male head and female head all include the combination as any one of the above.

[0022] Optionally, the connector further comprises a locking assembly, the locking assembly comprising:

[0023] a locking piece, one end of the locking piece being connected to the female head and the other end of the locking piece being provided as overhang, the overhanging end of the locking piece being provided with a buckling hole; and

[0024] a buckling part, the buckling part being provided in the male head, and the buckling part being connected with the buckling hole in buckling.

[0025] The utility model discloses a kind of combination and connector and related technology compared with the prior art, beneficial effect lies in: by being set between claw and shell is reverse buckle and is connected, after claw is inserted into first positioning cavity in claw assembly process, reverse buckle structure can prevent claw reverse movement along insertion direction, first limiting portion can prevent claw continue to move along insertion direction, i.e. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or related technologies, the drawings needed to be used in the embodiment or related technology description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0027] Figure 1 It is the structure schematic diagram of the connector provided by the utility model embodiment;

[0028] Figure 2 It is the sectional view of the connector provided by the utility model embodiment;

[0029] Figure 3 It is the structure schematic diagram of the claw provided by the utility model embodiment;

[0030] Figure 4 It is the structure schematic diagram of the shell in male head provided by the utility model embodiment;

[0031] Figure 5 It is the assembly schematic diagram of cable and terminal in female head provided by the utility model embodiment;

[0032] Figure 6 It is the assembly schematic diagram of cable and terminal in male head provided by the utility model embodiment.

[0033] In the drawings, various signs represent: 1, shell; 11, main body part; 111, containing cavity; 12, plug-in part; 121, first limiting part; 122, second positioning cavity; 123, second limiting part; 124, first plug-in cavity; 13, positioning part; 131, first positioning cavity; 132, clamping groove; 133, third gap; 14, lock plate; 141, buckling hole; 15, buckling part; 2, clamping jaw; 21, clamping section; 211, second gap; 22, clamping section; 221, notch; 222, clamping piece; 23, first gap; 3, first sealing element; 4, terminal; 41, second plug-in cavity; 41, step; 5, cable; 10, male head; 20, female head; 30, second sealing element; 40, protection plate. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application, and all other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments in the present application belong to the scope of protection of the present application.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0036] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple", "several" is two or more, unless otherwise explicitly specified.

[0037] Embodiment:

[0038] Please refer to Figure 1 and Figure 2The utility model embodiment provides a kind of connector, including male head 10 and the female head 20 of plug connection in male head 10, male head 10 and female head 20 all include combination;Wherein, the combination of male head 10 and the combination of female head 20 are inserted and connected.

[0039] Please refer to Figures 1 to 6 , combination includes shell 1 and dog 2, shell 1 is equipped with first positioning cavity 131, and the inner wall of first positioning cavity 131 is equipped with the dog slot 132 and the first limiting portion 121 of interval distribution;Dog 2 is inserted in first positioning cavity 131, and dog 2 has the elasticity that can expand or contract along radial direction, and one end of dog 2 is abutted on first limiting portion 121, the other end is connected with dog slot 132, and dog 2 and dog slot 132 form reverse buckling structure between.

[0040] By being set as reverse buckling connection between dog 2 and shell 1, after dog 2 is inserted into first positioning cavity 131 in the process of dog 2 assembly, reverse buckling structure can prevent dog 2 from moving along the reverse direction of insertion direction, and first limiting portion 121 can prevent dog 2 from continuing to move along insertion direction, i.e. in first positioning cavity 131, dog 2 can be fixed on shell 1 by reverse buckling structure and first limiting portion 121, so that dog 2 can be fixed without using front cover, the number of parts can be reduced, cost is reduced and assembly efficiency is improved.

[0041] It should be noted that, since dog 2 has the elasticity that can expand or contract along radial direction, when dog 2 is installed, dog 2 will be abutted along radial contraction by the inner wall of first positioning cavity 131, and when dog 2 is buckled into dog slot 132, dog 2 will expand along radial direction, so that dog 2 can form reverse buckling structure after being buckled into dog slot 132, so that dog 2 is axially restricted by reverse buckling structure and first limiting portion 121 together, so that the mutual fixation between dog 2 and shell 1 is completed.

[0042] It should be understood that dog 2 and first positioning cavity 131 are interference fit, improve the contact tightness between dog 2 and the inner wall of first positioning cavity 131, which is beneficial to prevent dog 2 from rotating relative to shell 1.

[0043] Please refer to Figure 2 And Figure 4The shell 1 comprises a main body part 11, a plug-in part 12 and a positioning part 13. The main body part 11 is provided with a containing cavity 111. The plug-in part 12 is arranged at one end of the main body part 11 and is provided with a second positioning cavity 122. An inner wall of the second positioning cavity 122 is provided with a first limiting part 121. One end of the positioning part 13 is arranged at the plug-in part 12, and the other end has a gap with an inner wall of the containing cavity 111. A first positioning cavity 131 and a clamping groove 132 are arranged in the positioning part 13. The positioning part 13 is provided with a plurality of third slits 133 which are distributed at intervals in the circumferential direction. One end of the third slit 133 extends to an end face of the positioning part 13 away from the plug-in part 12, and the other end extends through the clamping groove 132. The main body part 11, the plug-in part 12 and the positioning part 13 are integrally arranged, and the main body part 11, the plug-in part 12 and the positioning part 13 can be integrally formed by injection molding. The plurality of third slits 133 can assist the shell 1 to separate from the injection mold, thereby reducing the demolding difficulty. Moreover, the plurality of third slits 133 can separate the positioning part 13 into a plurality of segments which are distributed at intervals. When the clamping jaw is inserted, the positioning part 13 can be radially expanded under the abutting of the clamping jaw 2, thereby facilitating the insertion of the clamping jaw 2 into the first positioning cavity 131.

[0044] The number of third slits 133 is set according to actual needs, for example, two, three or four. The distance between each third slit 133 is set according to actual needs, for example, the third slits 133 are uniformly or non-uniformly distributed. In one specific example, the third slits 133 can be provided with four, and the four third slits 133 are equally spaced and distributed in the circumferential direction.

[0045] Referring to Figure 1 and Figure 2 In some embodiments, the plug-in part 12 of the shell 1 on the male head 10 is provided with a first plug-in cavity 124, and the plug-in part 12 of the shell 1 on the female head 20 is plug-in matched with the first plug-in cavity 124. In order to realize the sealing of the connection between the male head 10 and the female head 20, the plug-in part 12 of the shell 1 on the female head 20 is further sleeved with a second sealing member 30. The second sealing member 30 is in sealing contact with the plug-in part 12 of the shell 1 on the female head 20 and the inner wall of the first plug-in cavity 124, respectively. The second sealing member 30 can be a sealing ring.

[0046] Referring to Figure 2 and Figure 4 In some embodiments, the plug-in part 12 is provided with two second positioning cavities 122, and the positioning part 13 is provided with two positioning parts 13 which are distributed at intervals. The first positioning cavities 131 in the two positioning parts 13 are coaxially arranged one by one corresponding to the two second positioning cavities 122 on the plug-in part 12.

[0047] Referring to Figure 2 , Figure 4 and Figure 5The combination further comprises a terminal 4 and a cable 5, one end of the terminal 4 is located in the clamping jaw 2 and the other end is located in the second positioning cavity 122, the outer side of the terminal 4 is provided with a step 41, the second positioning cavity 122 is provided with a second limiting part 123 away from one end of the second positioning cavity 122, one end of the step 41 abuts against one end of the clamping jaw 2 away from the clamping groove 132, and the other end abuts against the second limiting part 123; one end of the cable 5 is connected to the terminal 4 and the other end is sequentially arranged through the first positioning cavity 131 and the accommodating cavity 111. The terminal 4 is inserted into the second positioning cavity 122, the clamping jaw 2 and the step 41 are matched with each other to prevent the terminal 4 from moving in the direction of the insertion direction, and the step 41 and the second limiting part 123 are matched with each other to prevent the terminal 4 from continuing to move in the insertion direction, so as to fix the terminal 4 on the shell 1.

[0048] Please refer to Figure 2 In some embodiments, the terminal 4 of the female head 20 is provided with a second plug-in cavity 41, and the terminal 4 of the male head 10 is plug-in matched with the second plug-in cavity 41. When the male head 10 and the female head 20 are plug-in, the plug-in part 12 of the shell 1 on the female head 20 is inserted into the first plug-in cavity 124, and the terminal 4 of the male head 10 is inserted into the second plug-in cavity 41 of the terminal 4 of the female head 20, so as to complete the connection of the male head 10 and the female head 20.

[0049] Please refer to Figure 2 and Figure 3 The clamping jaw 2 comprises a clamping section 21 and a clamping section 22 connected to the clamping section 21, the clamping section 21 is buckled and connected with the clamping groove 132, and one end of the clamping section 22 away from the clamping section 21 abuts against the first limiting part 121; in the reverse direction of the insertion direction of the clamping jaw 2, the clamping section 21 is inclined outward relative to the clamping section 22, so that after the clamping section 21 is buckled into the clamping groove 132, when the clamping jaw 2 moves in the reverse direction of the insertion direction, the clamping section 21 will abut against the inner wall of the clamping groove 132, and when the clamping jaw 2 moves in the insertion direction, the inner wall of the clamping groove 132 will block the movement of the clamping section 21, so that the clamping jaw 2 and the clamping groove 132 form a reverse buckling structure.

[0050] According to actual needs, the clamping groove 132 can be an annular groove, and the opposite two side walls of the clamping groove 132 are inclined, so as to facilitate the clamping section 21 and the clamping section 22 to slide into the clamping groove 132, and facilitate the clamping section 22 to slide away from the clamping groove 132. The clamping jaw 2 can be in a cylindrical shape, the diameter of the clamping section 21 is greater than the diameter of the clamping section 22, and in the reverse direction of the insertion direction of the clamping jaw 2, the diameter of the clamping section 21 gradually increases, that is, the clamping section 21 is in a trumpet shape.

[0051] Please refer to Figure 2 and Figure 3The clamping section 22 is provided with a plurality of notches 221 distributed along the circumference, and the clamping piece 222 is arranged in the notch 221. One end of the clamping piece 222 is connected to the inner wall of the notch 221, and the other end extends inward relative to the clamping section 22 in the insertion direction of the clamping jaw 2, so that the plurality of clamping pieces 222 can collectively clamp the terminal 4, thereby improving the fixing firmness of the terminal 4 in the shell 1.

[0052] The number of notches 221 and clamping pieces 222 is set according to actual needs, for example, two, three, or four; the distance between each clamping piece 222 is set according to actual needs, for example, the notches 221 and clamping pieces 222 are uniformly distributed or unevenly distributed. In one specific example, the clamping piece 222 can be provided with four, and the four clamping pieces 222 are equally spaced along the circumference, and the four clamping pieces 222 are arranged in the four notches 221.

[0053] It should be understood that since one end of the clamping piece 222 is connected to the clamping section 22 and the other end is suspended, the clamping piece 222 can move radially, so that the plurality of clamping pieces 222 can form a clamping opening that can contract or expand radially, facilitating the passage of the step 41 of the terminal 4 through the clamping opening.

[0054] Please refer to Figure 3 The clamping jaw 2 is provided with a first gap 23, and the two ends of the first gap 23 extend to the two ends of the clamping jaw 2, so that the clamping jaw 2 can contract radially under stress and expand radially to restore when not stressed, so that the clamping jaw 2 has elasticity that can expand or contract in the radial direction.

[0055] Please refer to Figure 3 The clamping section 21 is provided with a plurality of second gaps 211, and the plurality of second gaps 211 are distributed along the circumference, thereby separating the clamping section 21 into multiple sections. During the insertion of the clamping jaw 2, the clamping section 21 can contract radially under the resistance of the inner wall of the first positioning cavity 131, and expand radially to be clamped into the clamping groove 132 when in the clamping groove 132.

[0056] The number of second gaps 211 is set according to actual needs, for example, two, three, or four; the distance between each second gap 211 is set according to actual needs, for example, the second gaps 211 are uniformly distributed or unevenly distributed. In one specific example, the second gap 211 can be provided with six, and the six second gaps 211 are equally spaced along the circumference, and one of the six second gaps 211 coincides with the first gap 23.

[0057] Please refer to Figure 2The combination further comprises a first sealing member 3 embedded into the accommodating cavity 111 and in sealing contact with the inner wall of the accommodating cavity 111, the first sealing member 3 is located at the end of the positioning portion 13 away from the plug-in portion 12, and the first sealing member 3 can seal the accommodating cavity 111 and ensure the sealing of the combination. The first sealing member 3 can be a soft rubber member, and after the clamping jaw 2 is assembled into the shell 1, the first sealing member 3 is assembled into the accommodating cavity 111, and then the connected cable 5 and the terminal 4 are threaded through the first sealing member 3 and the first positioning cavity 131 to assemble the terminal 4 into the second positioning cavity 122.

[0058] Referring to Figure 1 and Figure 4 The connector further comprises a locking assembly, the locking assembly comprises a locking piece 14 and a buckling portion 15, one end of the locking piece 14 is connected to the female head 20 and the other end is suspended, and the suspended end of the locking piece 14 is provided with a buckling hole 141; the buckling portion 15 is arranged on the male head 10, and the buckling portion 15 is connected with the buckling hole 141 in buckling connection, so that the male head 10 and the female head 20 can be locked by the locking assembly. The buckling portion 15 and the buckling hole 141 form an open hole buckle, which can make the buckling height lower and the service life longer.

[0059] Referring to Figure 1 In some embodiments, the shell 1 of the female head 20 is further provided with a protection plate 40, the protection plate 40 is vertically fixed on the surface of the shell 1, and the protection plate 40 is provided with two, and the end of the locking piece 14 connected with the shell 1 is arranged between the two protection plates 40, so that the connector can be prevented from being unlocked by mistake during use.

[0060] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A combination, characterized in that The combination further comprises: a housing provided with a first positioning cavity, an inner wall of the first positioning cavity is provided with a plurality of clamping grooves and a first limiting portion; and a clamping jaw inserted into the first positioning cavity, the clamping jaw is elastically expandable or contractible in a radial direction, one end of the clamping jaw abuts against the first limiting portion, the other end of the clamping jaw is connected with the clamping groove in a buckling manner, and a reverse buckling structure is formed between the clamping jaw and the clamping groove.

2. The combination of claim 1, wherein, The clamping jaw comprises a clamping segment and a clamping segment connected to the clamping segment, the clamping segment is connected with the clamping groove in a buckling manner, and one end of the clamping segment away from the clamping segment abuts against the first limiting portion; In a reverse direction of the insertion direction of the clamping jaw, the clamping segment is outwardly inclined relative to the clamping segment.

3. The combination of claim 2, wherein, The clamping segment is provided with a plurality of gaps spaced apart in a circumferential direction, and the clamping jaw further comprises a plurality of clamping pieces corresponding to the plurality of gaps, one end of the clamping piece is connected to the inner wall of the gap, and the other end of the clamping piece extends inward relative to the clamping segment in the insertion direction of the clamping jaw.

4. The combination of claim 2, wherein, The clamping jaw is provided with a first gap, and the two ends of the first gap extend to the two ends of the clamping jaw respectively.

5. The combination of claim 2, wherein, The clamping segment is provided with a plurality of second gaps, and the plurality of second gaps are spaced apart in a circumferential direction.

6. The combination of claim 1, wherein, The housing comprises: a main body portion provided with a receiving cavity; a plug-in portion provided at one end of the main body portion and provided with a second positioning cavity, an inner wall of the second positioning cavity is provided with the first limiting portion; and a positioning portion provided at one end of the plug-in portion and having a gap between the other end and the inner wall of the receiving cavity, the first positioning cavity and the clamping groove are both provided in the positioning portion, the positioning portion is provided with a plurality of third gaps spaced apart in a circumferential direction, one end of the third gap extends to an end face of the positioning portion away from the plug-in portion, and the other end of the third gap extends through the clamping groove.

7. The combination of claim 6, wherein The combination further comprises a first sealing member embedded into the receiving cavity and in sealing contact with the inner wall of the receiving cavity, and the first sealing member is located at one end of the positioning portion away from the plug-in portion.

8. The combination of claim 6, wherein, The combination further comprises: a terminal located at one end in the clamping jaw and at the other end in the second positioning cavity, an outer side of the terminal is provided with a step, the second positioning cavity is provided with a second limiting portion at one end away from the second positioning cavity, one end of the step abuts against one end of the clamping jaw away from the clamping groove, and the other end of the step abuts against the second limiting portion; and a cable connected at one end to the terminal and at the other end sequentially threaded through the first positioning cavity and the receiving cavity.

9. A connector characterized by comprising: The connector further comprises a locking assembly, the locking assembly comprises:

10. The connector of claim 9, wherein, a locking piece connected at one end to the female head and provided at the other end in a suspended manner, the suspended end of the locking piece is provided with a buckling hole; and a buckling portion provided in the male head, the buckling portion is connected with the buckling hole in a buckling manner. The combination further comprises: a housing provided with a first positioning cavity, an inner wall of the first positioning cavity is provided with a plurality of clamping grooves and a first limiting portion; and a clamping jaw inserted into the first positioning cavity, the clamping jaw is elastically expandable or contractible in a radial direction, one end of the clamping jaw abuts against the first limiting portion, the other end of the clamping jaw is connected with the clamping groove in a buckling manner, and a reverse buckling structure is formed between the clamping jaw and the clamping groove. The clamping jaw comprises a clamping segment and a clamping segment connected to the clamping segment, the clamping segment is connected with the clamping groove in a buckling manner, and one end of the clamping segment away from the clamping segment abuts against the first limiting portion; In a reverse direction of the insertion direction of the clamping jaw, the clamping segment is outwardly inclined relative to the clamping segment. The clamping segment is provided with a plurality of gaps spaced apart in a circumferential direction, and the clamping jaw further comprises a plurality of clamping pieces corresponding to the plurality of gaps, one end of the clamping piece is connected to the inner wall of the gap, and the other end of the clamping piece extends inward relative to the clamping segment in the insertion direction of the clamping jaw. The clamping jaw is provided with a first gap, and the two ends of the first gap extend to the two ends of the clamping jaw respectively. The clamping segment is provided with a plurality of second gaps, and the plurality of second gaps are spaced apart in a circumferential direction. The housing comprises: a main body portion provided with a receiving cavity; a plug-in portion provided at one end of the main body portion and provided with a second positioning cavity, an inner wall of the second positioning cavity is provided with the first limiting portion; and a positioning portion provided at one end of the plug-in portion and having a gap between the other end and the inner wall of the receiving cavity, the first positioning cavity and the clamping groove are both provided in the positioning portion, the positioning portion is provided with a plurality of third gaps spaced apart in a circumferential direction, one end of the third gap extends to an end face of the positioning portion away from the plug-in portion, and the other end of the third gap extends through the clamping groove. The combination further comprises a first sealing member embedded into the receiving cavity and in sealing contact with the inner wall of the receiving cavity, and the first sealing member is located at one end of the positioning portion away from the plug-in portion. The combination further comprises: a terminal located at one end in the clamping jaw and at the other end in the second positioning cavity, an outer side of the terminal is provided with a step, the second positioning cavity is provided with a second limiting portion at one end away from the second positioning cavity, one end of the step abuts against one end of the clamping jaw away from the clamping groove, and the other end of the step abuts against the second limiting portion; and a cable connected at one end to the terminal and at the other end sequentially threaded through the first positioning cavity and the receiving cavity. The connector further comprises a locking assembly, the locking assembly comprises: a locking piece connected at one end to the female head and provided at the other end in a suspended manner, the suspended end of the locking piece is provided with a buckling hole; and a buckling portion provided in the male head, the buckling portion is connected with the buckling hole in a buckling manner.

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