Connector and connector assembly

Abstract

The invention relates to the technical field of conductive connecting devices, in particular to a connector and a connector assembly. The connector comprises a main shell and a connecting cap rotationally installed on the main shell, the connecting cap is provided with a clamping nail or a curved groove of a clamping nail curved groove connecting structure, one of the main shell and the connecting cap is provided with a pre-positioning convex part, and the other one of the main shell and the connecting cap is provided with a pre-positioning clamping groove allowing the pre-positioning convex part to be clamped in so that the connecting cap can be in a pre-positioning state. The pre-positioning convex part and / or the pre-positioning clamping groove are / is provided with an elastic deformation structure so that the pre-positioning convex part can be separated from the pre-positioning clamping groove when the connecting cap rotates and is locked relative to the main shell, and the connector is provided with a circumferential positioning structure used for being circumferentially positioned with an adaptive connector. The set phase difference exists between the circumferential positioning structure and the connecting cap, and when the main shell is aligned with the adaptive connector through the circumferential positioning structure, the connecting cap pre-positioned on the main shell is also in an aligned state, so that the operation convenience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of conductive connection devices, and in particular to a connector and a connector assembly. Background Art

[0002] Electrical connectors are widely used in various fields such as communications, industry, and aerospace. The connection between the plug connector and the socket connector requires not only quick connection and separation, but also simple and convenient operation. The pin curved groove locking connection structure has been used as an important plug and socket locking connection method due to its simple structure and high reliability. Its structure is usually: a hood is rotatably mounted on the main shell of the plug, and a curved groove is provided on the inner wall of the hood. A pin is convexly provided on the outer peripheral surface of the main shell of the socket. When the plug and the socket are plugged in, the pin enters the curved groove from the corresponding opening of the curved groove. By rotating the hood, the main shell of the plug is pushed axially in cooperation with the pin and the curved groove. The main shell of the plug is inserted into the main shell of the socket, and the hood is screwed onto the outside of the main shell of the socket. The pin is finally stuck in the depression at the terminal of the curved groove, thereby locking the plug and the socket through the hood. In order to make the socket contacts in the main shell of the plug correspond to the pin contacts in the main shell of the socket, a positioning groove is provided on the inner wall of the main shell of the socket, and a positioning key is provided on the outer wall of the main shell of the plug. The key groove cooperates with the main shell of the plug to position it when it is inserted into the main shell of the socket to avoid the pin contacts and the socket contacts from being misaligned.

[0003] When the above-mentioned matching plug and socket are plugged in, two steps of alignment are required. The first step is to align the positioning key on the main housing of the plug with the positioning groove on the main housing of the socket, and the second step is to align the curved groove opening on the hood with the clamping pin on the main housing of the socket. Since the hood of the plug is freely rotatable on the main housing of the plug, after the operator performs the first step of alignment, it is necessary to manually rotate and adjust the position of the hood to perform the second step of alignment until the curved groove opening of the hood is aligned with the clamping pin on the main housing of the socket, which causes inconvenience to the operation and affects the plugging efficiency. Summary of the invention

[0004] The object of the present invention is to provide a connector to solve the problem that when the current connector is locked and connected, after the first step of shell alignment, it is necessary to manually rotate and adjust the position of the hood to perform the second step of hood alignment, which is inconvenient to operate; the object of the present invention is also to provide a connector assembly to solve the above problem.

[0005] The technical solution of the connector of the present invention is: A connector comprises a main shell and a connecting cap rotatably mounted on the main shell, the connecting cap being provided with a staple or a curved groove of a staple curved groove connection structure, one of the main shell and the connecting cap being provided with a pre-positioning protrusion, and the other being provided with a pre-positioning groove for the pre-positioning protrusion to be inserted into so that the connecting cap is in a pre-positioning state, the pre-positioning protrusion and / or the pre-positioning groove being provided with an elastically deformable structure so that the pre-positioning protrusion can be disengaged from the pre-positioning groove when the connecting cap is rotated and locked relative to the main shell, a circumferential positioning structure for circumferential positioning with an adapter connector being provided on the connector, and when the pre-positioning protrusion is inserted into the pre-positioning groove, there is a set phase difference between the circumferential positioning structure and the connecting cap.

[0006] Furthermore, the elastically deformable structure is a spring sheet structure.

[0007] Furthermore, a hollow cavity is provided on the main shell and / or the connecting cap, and two ends of the spring structure in the extension direction are connected to opposite side walls of the corresponding hollow cavity.

[0008] Furthermore, a main shell body or a connecting cap provided with a pre-positioning slot is provided with a limiting slot for the pre-positioning protrusion to extend into, and the limiting slot has a slot space for avoiding the pre-positioning protrusion when the connecting cap rotates relative to the main shell body, and the limiting slot is respectively provided with a first stopping side wall and a second stopping side wall at both ends of its extension direction; when the connecting cap is in a pre-positioning state, the first stopping side wall stops the pre-positioning protrusion; when the connecting cap is rotated to lock and connect the connector and the adapter connector through the staple curved groove connection structure, the second stopping side wall stops the pre-positioning protrusion; a limiting protrusion close to the first stopping side wall and away from the second stopping side wall is provided at the bottom of the limiting slot, and the pre-positioning slot is formed between the limiting protrusion and the first stopping side wall.

[0009] Furthermore, a limiting protrusion is provided on one of the main shell and the connecting hood, and a limiting groove is provided on the other one for the limiting protrusion to extend into. The limiting groove and the pre-positioning groove are spaced apart in the circumferential direction of the main shell. The limiting groove has an inner groove space for avoiding the limiting protrusion when the connecting hood rotates relative to the main shell. The limiting groove is respectively provided with a first stopping side wall and a second stopping side wall at both ends of its extension direction; when the connecting hood is in the pre-positioning state, the first stopping side wall stops the limiting protrusion; when the connecting hood is rotated to lock the connector and the adapter connector through the staple curved groove connection structure, the second stopping side wall stops the limiting protrusion.

[0010] Further, the limiting groove is arranged on the outer wall of the main shell, and the limiting protrusion is arranged on the inner wall of the hood; or the limiting groove is arranged on the inner wall of the hood, and the limiting protrusion is arranged on the outer wall of the main shell.

[0011] Further, one of the pre-positioning protrusion and the pre-positioning groove is arranged on the outer wall of the main shell, and the other is arranged on the inner wall of the hood.

[0012] Furthermore, a first mark is provided on the outer peripheral surface of one end of the connecting cap located at the plug-in end of the connector, the connector includes a plug-in body, the plug-in body includes the main shell, and a second mark is provided on the end surface of the plug-in body located at the plug-in end of the connector. When the first mark corresponds to the second mark by rotating the connecting cap, the connecting cap is in a pre-positioning state.

[0013] Furthermore, the main housing or the connecting cap is provided with an alignment mark for corresponding to the alignment mark on the housing of the adapter connector so as to align the main housing with the adapter connector.

[0014] Furthermore, the hood is provided with an alignment mark for corresponding to the alignment mark on the housing of the adapter connector to align the main housing with the adapter connector, and one end of the main housing located at the connector plugging end is located in the hood without protruding from the hood.

[0015] Furthermore, an indication plane for indicating the position of the connecting hood relative to the adapter connector is provided on the circumferential outer wall of the connecting hood.

[0016] The beneficial effects of the connector of the present invention: the present invention makes element changes on the basis of the connector in the prior art, and respectively sets a pre-positioning protrusion and a pre-positioning groove on the main shell and the connecting cap of the connector, and the pre-positioning protrusion cooperates with the pre-positioning groove to enable the connecting cap to be pre-positioned on the main shell. When the connecting cap is in the pre-positioning state, there is a set phase difference between the circumferential positioning structure of the connector and the connecting cap, so that the connecting cap and the main shell maintain a set circumferential relative position relationship. When the relative relationship between the connecting cap and the main shell satisfies that the circumferential positioning structure on the connector corresponds to the adapter connector, the connecting cap and the adapter connector realize the alignment of the curved groove opening and the staple. Before the connector is plugged in, the pre-positioning structure and the circumferential positioning structure can have a set circumferential direction. The circumferential relative position means that when the connector and the adapter connector are connected, when the main shell is aligned with the adapter connector through the circumferential positioning structure, the connecting cap pre-positioned on the main shell will also be in an aligned state, so that when the main shell and the adapter connector are aligned and plugged in, the curved groove openings respectively arranged on the connecting cap and the adapter connector can be aligned with the pin. After the pin enters the curved groove, the pre-positioning protrusion is disengaged from the pre-positioning groove by rotating the connecting cap, and the connecting cap can be separated from the pre-positioning state and the connector and the adapter connector can be locked through the pin curved groove connection structure. In this way, during the connection operation, only one alignment operation is required to align the main shell with the adapter connector and the pin with the curved groove opening, which is conducive to improving operational convenience.

[0017] The technical solution of the connector assembly of the present invention is: A connector assembly comprises a connector and an adaptor connector adapted to be plugged with the connector, the connector comprising a main shell and a hood rotatably mounted on the main shell, the hood being provided with a staple or a curved groove of a staple curved groove connection structure, one of the main shell and the hood being provided with a pre-positioning protrusion, and the other being provided with a pre-positioning groove for the pre-positioning protrusion to be snapped into so that the hood is in a pre-positioning state, the pre-positioning protrusion and / or the pre-positioning groove being provided with an elastically deformable structure so that the pre-positioning protrusion can be disengaged from the pre-positioning groove when the hood is rotated and locked relative to the main shell, a circumferential positioning structure for circumferential positioning with the adaptor connector being provided on the connector, and when the pre-positioning protrusion is snapped into the pre-positioning groove, there is a set phase difference between the circumferential positioning structure and the hood.

[0018] Furthermore, the elastically deformable structure is a spring sheet structure.

[0019] Furthermore, a hollow cavity is provided on the main shell and / or the connecting cap, and two ends of the spring structure in the extension direction are connected to opposite side walls of the corresponding hollow cavity.

[0020] Furthermore, a main shell body or a connecting cap provided with a pre-positioning slot is provided with a limiting slot for the pre-positioning protrusion to extend into, and the limiting slot has a slot space for avoiding the pre-positioning protrusion when the connecting cap rotates relative to the main shell body, and the limiting slot is respectively provided with a first stopping side wall and a second stopping side wall at both ends of its extension direction; when the connecting cap is in a pre-positioning state, the first stopping side wall stops the pre-positioning protrusion; when the connecting cap is rotated to lock and connect the connector and the adapter connector through the staple curved groove connection structure, the second stopping side wall stops the pre-positioning protrusion; a limiting protrusion close to the first stopping side wall and away from the second stopping side wall is provided at the bottom of the limiting slot, and the pre-positioning slot is formed between the limiting protrusion and the first stopping side wall.

[0021] Furthermore, a limiting protrusion is provided on one of the main shell and the connecting hood, and a limiting groove is provided on the other one for the limiting protrusion to extend into. The limiting groove and the pre-positioning groove are spaced apart in the circumferential direction of the main shell. The limiting groove has an inner groove space for avoiding the limiting protrusion when the connecting hood rotates relative to the main shell. The limiting groove is respectively provided with a first stopping side wall and a second stopping side wall at both ends of its extension direction; when the connecting hood is in the pre-positioning state, the first stopping side wall stops the limiting protrusion; when the connecting hood is rotated to lock the connector and the adapter connector through the staple curved groove connection structure, the second stopping side wall stops the limiting protrusion.

[0022] Further, the limiting groove is arranged on the outer wall of the main shell, and the limiting protrusion is arranged on the inner wall of the hood; or the limiting groove is arranged on the inner wall of the hood, and the limiting protrusion is arranged on the outer wall of the main shell.

[0023] Further, one of the pre-positioning protrusion and the pre-positioning groove is arranged on the outer wall of the main shell, and the other is arranged on the inner wall of the hood.

[0024] Furthermore, a first mark is provided on the outer peripheral surface of one end of the connecting cap located at the plug-in end of the connector, the connector includes a plug-in body, the plug-in body includes the main shell, and a second mark is provided on the end surface of the plug-in body located at the plug-in end of the connector. When the first mark corresponds to the second mark by rotating the connecting cap, the connecting cap is in a pre-positioning state.

[0025] Furthermore, the main housing or the connecting cap is provided with an alignment mark for corresponding to the alignment mark on the housing of the adapter connector so as to align the main housing with the adapter connector.

[0026] Furthermore, the hood is provided with an alignment mark for corresponding to the alignment mark on the housing of the adapter connector to align the main housing with the adapter connector, and one end of the main housing located at the connector plugging end is located in the hood without protruding from the hood.

[0027] Furthermore, an indication plane for indicating the position of the connecting hood relative to the adapter connector is provided on the circumferential outer wall of the connecting hood.

[0028] The beneficial effects of the connector assembly of the present invention: the present invention makes element changes on the basis of the connector assembly in the prior art, and respectively sets a pre-positioning protrusion and a pre-positioning slot on the main shell and the hood of the connector, and the pre-positioning protrusion cooperates with the pre-positioning slot to enable the hood to be pre-positioned on the main shell. When the hood is in the pre-positioning state, there is a set phase difference between the circumferential positioning structure of the connector and the hood, so that the hood and the main shell maintain a set circumferential relative position relationship. The relative relationship between the hood and the main shell satisfies that when the circumferential positioning structure on the connector corresponds to the adapter connector, the hood and the adapter connector realize the alignment of the curved groove opening and the staple. Before the connector is plugged in, the pre-positioning structure and the circumferential positioning structure can have a set circumferential direction. The circumferential relative position is determined, so that when the connector and the adapter connector are connected, when the main shell is aligned with the adapter connector through the circumferential positioning structure, the connecting cap pre-positioned on the main shell will also be in an aligned state, so that when the main shell and the adapter connector are aligned and plugged in, the curved groove openings respectively arranged on the connecting cap and the adapter connector can be aligned with the pin. After the pin enters the curved groove, the pre-positioning protrusion is disengaged from the pre-positioning groove by rotating the connecting cap, and the connecting cap can be separated from the pre-positioning state and the connector and the adapter connector are locked by the pin curved groove connection structure. In this way, during the connection operation, only one alignment operation is required to align the main shell with the adapter connector and the pin with the curved groove opening, which is conducive to improving the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the plug and the socket of the embodiment 1 of the connector assembly of the present invention when they are separated; Figure 2 for Figure 1A schematic diagram of the structure of the socket; Figure 3 for Figure 1 A schematic diagram of the structure of the plug in FIG. Figure 4 for Figure 3 A schematic diagram of the hooded structure in FIG. Figure 5 for Figure 3 A schematic diagram of the structure of the main housing in FIG. Figure 6 for Figure 3 A schematic diagram of the pre-positioning matching structure of the hood and the main shell; Figure 7 It is a schematic diagram of the pre-positioning matching structure between the hood and the main housing of the embodiment 2 of the connector assembly of the present invention; Figure 8 for Figure 7 A three-dimensional schematic diagram of a main housing from one perspective; Fig. 9 for Figure 7 A three-dimensional schematic diagram of another viewing angle of the main housing in FIG. Fig.10 for Figure 7 A three-dimensional schematic diagram of a hooded device; Fig.11 It is a schematic diagram of the pre-positioning matching structure between the hood and the main shell of Example 3 of the connector assembly of the present invention.

[0030] In the figure: 100, plug; 11, plug main body; 12, hood; 13, socket contact; 111, positioning key; 112, second mark; 113, housing pre-positioning convex portion; 121, connecting section; 122, screwing section; 123, curved groove; 1231, curved groove opening; 124, first mark; 125, indicating plane; 126, spring sheet structure; 127, hollow cavity; 128, limiting groove; 129, limiting protrusion; 1210, hood pre-positioning slot; 1211, first stop side wall; 1212, second stop side wall; 200, socket; 21, socket main housing; 22, plug-in cavity; 23, pin contact; 24, positioning groove; 25, staple; 26, alignment mark; 1213, hood pre-positioning convex part; 114, housing pre-positioning slot; 1214, hood limiting groove; 115, housing limiting convex part; 1215, hood-connecting limiting protrusion; 116, shell body limiting groove. DETAILED DESCRIPTION

[0031] The present invention provides a pre-positioning protrusion and a pre-positioning groove on the main shell and the connecting cap of the connector respectively, and the pre-positioning protrusion cooperates with the pre-positioning groove to enable the connecting cap to be pre-positioned on the main shell. When the connector and the adapter connector are connected, the circumferential positioning structure of the main shell is aligned with the shell of the adapter connector, and the connecting cap pre-positioned on the main shell is also in a state of alignment between the curved groove opening and the staple. In this way, only one alignment operation is required for two parts that need to be aligned, which is conducive to improving the convenience of operation.

[0032] Embodiment 1 of the connector assembly of the present invention: like Figure 1 , Figure 2 , Figure 3 As shown, the connector assembly includes a plug 100 and a socket 200. The head end of the plug 100 is a plug-in end, and the tail end is used to connect the cable. The plug 100 includes a hood 12 and a plug body. The plug body includes a plug main housing 11 and a jack component. The jack component is installed in the plug main housing 11. The jack component includes an insulator and a jack contact 13 arranged in the insulator. The hood 12 is rotatably mounted outside the plug main housing 11. The head end of the socket 200 is a plug-in end, and the tail end is used to connect the components in the chassis. The socket 200 includes a socket main housing 21 and a pin component. The socket main housing 21 has a square plate for fixing with the outer wall of the chassis. The pin component is installed in the socket main housing 21. The pin component includes an insulator and a pin contact 23 arranged in the insulator. The head of the socket main housing 21 is provided with a plug cavity 22, and the pin contact 23 extends into the plug cavity 22. The head of the plug main housing 11 extends into the insertion cavity 22 of the socket 200 so that the pin contact 23 is plugged into the socket contact 13 .

[0033] Two pin contacts 23 are arranged side by side, and correspondingly, two socket contacts 13 are arranged side by side. A positioning groove 24 is arranged on the cavity wall of the plug cavity 22 of the socket main housing 21, and a plurality of positioning grooves 24 are distributed along the circumference of the socket main housing 21. A plurality of positioning keys 111 are distributed along the circumference on the outer circumference of the head of the plug main housing 11. A curved groove 123 is arranged on the head of the hood 12, and there are three curved grooves 123 that are evenly distributed around the hood 12. Correspondingly, three staples 25 are evenly distributed around the outer circumference of the plug main housing 11, and the curved groove 123 has a curved groove opening 1231 located on the end face of the head of the hood 12, and the curved groove opening 1231 allows the corresponding staple 25 to enter the curved groove 123. The hood 12 is usually mounted on the plug main housing 11 in an axially limited position, that is, the hood 12 can rotate on the plug main housing 11, but is restricted in the axial direction. Its mounting structure can be adopted by setting an inner ring platform on the inner wall of the hood 12, setting a stop platform on the outer wall of the plug main housing 11, and the hood 12 is put on the plug main housing 11 from the head side of the plug main housing 11. The stop platform on the plug main housing 11 stops the inner ring platform on the hood 12 on one side, and the other side of the inner ring platform of the hood 12 is limited by clamping a stop ring on the plug main housing 11 to ensure the axial position of the hood 12 relative to the plug main housing 11. There is an annular space between the head of the hood 12 and the head of the plug main housing 11 for the head of the socket main housing 21 to enter when the plug 100 is plugged into the socket 200.

[0034] The plug 100 and the socket 200 are two connectors adapted for plugging. The main housing 11 of the plug has an alignment state for aligning with the main housing 21 of the socket when plugged. When the main housing 11 of the plug is in the alignment state, the positioning key 111 corresponds to the positioning groove 24 one by one, and the pin contact 23 corresponds to the socket contact 13 one by one. The cap 12 has an alignment state for aligning the curved groove opening 1231 with the staple 25 when the plug is connected to the socket. The curved groove 123 and the staple 25 constitute a staple curved groove connection structure. When the plug 100 is plugged into the socket 200, the head of the plug main shell 11 is inserted into the plug-in cavity 22 of the socket main shell 21, and the positioning key 111 on the plug main shell 11 is inserted into the positioning groove 24 on the socket main shell 21. The positioning key 111 constitutes a circumferential positioning structure of the plug. The positioning key and the positioning groove cooperate to ensure the circumferential relative position of the plug main shell relative to the socket main shell, so that the pin contact 23 of the socket 200 is correspondingly inserted into the socket contact 13 of the plug 100; the staple 25 enters the curved groove 123 from the curved groove opening 1231, and then the hood 12 is screwed until the staple 25 is stuck in the recessed part of the curved groove 123 away from the opening end thereof. At this time, it is screwed into place, and at the same time, the plug 100 and the socket 200 are plugged into place, and the hood 12 is sleeved onto the outer periphery of the head of the socket main shell 21. The plug 100 and the socket 200 are locked and connected through the staple curved groove connection structure.

[0035] To facilitate alignment operations, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the plug main housing 11 is provided with a housing pre-positioning protrusion 113, and the hood 12 is provided with a hood pre-positioning slot 1210. The housing pre-positioning protrusion 113 is inserted into the hood pre-positioning slot 1210 to put the hood 12 in a pre-positioned state, and the hood pre-positioning slot 1210 is provided with an elastically deformable structure so that the housing pre-positioning protrusion 113 can be disengaged from the hood pre-positioning slot 1210 when the hood 12 rotates relative to the plug main housing 11. When the pre-positioning protrusion of the plug main housing 11 is inserted into the pre-positioning groove of the connecting hood 12, there is a set phase difference between the positioning key 111 and the connecting hood 12, that is, the positioning key 111 and the connecting hood 12 have a set circumferential relative position, that is, the connecting hood 12 has a set position relative to the plug main housing 11 before the plug and the socket are locked and connected through the pre-positioning structure, so that when the plug main housing 11 is in the aligned state, the connecting hood 12 is in the pre-positioned state and in the aligned state. In this way, when the plug main housing 11 is in the aligned state, the connecting hood 12 pre-positioned on the plug main housing 11 can be in the aligned state together. Therefore, when the plug 100 is docked onto the socket 200, the positioning key 111 enters the positioning groove 24 and the pin 25 enters the curved groove 123 from the curved groove opening 1231. Then, the shell pre-positioning protrusion 113 can be disengaged from the hood pre-positioning slot 1210 by rotating the hood 12. The hood 12 can be disengaged from the pre-positioning state and the plug 100 and the socket 200 can be locked by the pin curved groove connection structure. In this way, during the connection operation, only one alignment operation is required to align the plug main shell 11 with the socket main shell 21 and the pin 25 with the curved groove opening 1231, which is conducive to improving operational convenience.

[0036] The hood 12 includes a connecting section 121 and a screwing section 122 arranged in the axial direction. One end of the head of the hood 12 is located at the connecting section 121. A curved groove 123 is arranged on the connecting section 121. The outer diameter of the screwing section 122 is larger than the outer diameter of the connecting section 121. A toothed structure is arranged on the outer peripheral surface of the screwing section 122 to facilitate the screwing operation of the hood 12. The main plug housing 11 has a step surface facing the head side. The hood 12 is sleeved on the side of the main plug housing 11 located on the step surface close to the plug end. The main plug housing 11 has a pre-positioning matching section adapted to the inner diameter of the screwing section 122 of the hood 12. The housing pre-positioning protrusion 113 is convexly arranged on the outer wall of the pre-positioning matching section of the main plug housing 11. The hood pre-positioning slot 1210 is arranged on the inner wall of the screwing section 122 of the hood 12, which is conducive to reliable clamping.

[0037] A limiting groove 128 is provided on the inner wall of the screwing section 122 of the hood 12. The limiting groove 128 extends along the circumference of the hood 12. The limiting groove 128 passes through the end surface of the screwing section 122 that faces away from the connecting section 121. After the hood 12 is installed on the plug main housing 11, the housing pre-positioning protrusion 113 extends into the limiting groove 128. The limiting groove 128 has a groove space that avoids the housing pre-positioning protrusion 113 when the hood 12 rotates relative to the plug main housing 11. The limiting groove 128 is provided with a first stop side wall 1211 and a second stop side wall 1212 at both ends of its extension direction. When the hood 12 is in the pre-positioning state, the first stop side wall 1211 can stop the housing stop protrusion 115. When the plug 100 and the socket 200 are locked and connected via the staple curved groove connection structure by rotating the connecting hood 12, the second stopping side wall 1212 can stop the shell limiting protrusion 115, and the first stopping side wall 1211 and the second stopping side wall 1212 of the limiting groove 128 cooperate with the shell pre-positioning protrusion 113 to form a rotation travel limiting structure, which limits the rotation range of the connecting hood 12, which is beneficial to ensure the relative position of the connecting hood 12 and the plug main shell 11.

[0038] The bottom of the limiting groove 128 is provided with a limiting protrusion 129 close to the first stopping side wall 1211 and away from the second stopping side wall 1212, and a hooded pre-positioning slot 1210 is formed between the limiting protrusion 129 and the first stopping side wall 1211. The size of the hooded pre-positioning slot 1210 is adapted to the size of the shell pre-positioning protrusion 113 to ensure the pre-positioning effect. The hooded pre-positioning slot 1210 is formed by utilizing a part of the limiting groove 128, so that the shell pre-positioning protrusion 113 can be used for both pre-positioning and rotation range limiting, which is conducive to simplifying the structure.

[0039] A hollow cavity 127 is provided on the hood 12 at a portion of the limiting groove 128 close to the first stop side wall 1211 to form a spring structure 126 in this portion. The hollow cavity 127 has an opening toward the center line of the hood 12 and an opening that passes through to the rear end of the hood 12. The two ends of the spring structure 126 in the extension direction are connected to the two side walls of the hollow cavity 127 that are opposite to each other in the circumferential direction of the hood 12 to ensure the strength of the spring structure 126. The spring structure 126 is separated from the cavity wall of the hollow cavity 127 that faces the rear end of the hood 12 so that the spring structure 126 has sufficient elastic deformation ability. The spring structure 126 constitutes an elastically deformable structure. The portion near the first stop side wall 1211 is provided with a bulge bulging toward the center line of the hood 12, where the bulge forms a limiting protrusion 129, and the limiting protrusion 129 is located on the spring structure 126, so that the portion of the hood 12 where the hood pre-positioning slot 1210 is provided has elastic deformation capability. When the hood needs to be rotated to lock the plug 100 and the socket 200, the shell pre-positioning convex portion 113 moves away from the first stop side wall 1211 and presses the limiting protrusion 129, and the limiting protrusion 129 elastically deforms into the hollow cavity 127 to let the shell pre-positioning convex portion 113 go away, and the shell pre-positioning convex portion 113 can be separated from the hood pre-positioning slot 1210, ensuring the normal rotation of the hood 12. By utilizing the elastic deformation of the spring, the pre-positioning structure is not easily damaged, which is suitable for the use scenario where the plug 100 and the socket 200 need to be frequently plugged in and out, and is convenient for multiple disassembly, positioning and installation.

[0040] The hood 12 is made of insulating plastic, which is relatively soft and is conducive to the deformation of the spring structure 126. The plug main housing 11 is a metal housing, and the housing pre-positioning protrusion 113 is a rigid rectangular protrusion, which is conducive to reliable blocking with the corresponding blocking side wall. The limiting protrusion 129 is an arched protrusion with a smooth curved surface, which is convenient for guiding the housing pre-positioning protrusion 113 to enter and escape from the hood pre-positioning slot 1210.

[0041] In order to facilitate personnel to judge whether the hood 12 is in the pre-positioned state, a first mark 124 is provided on the outer peripheral surface of one end of the hood 12 located at the plug end of the plug 100, and the first mark 124 is arranged close to the edge. A second mark 112 is provided on the end surface of the insulator located at the plug end of the plug 100 in the plug main body 11. When the plug 100 is not plugged into the socket 200, the operator can see the second mark 112 on the plug main body end surface of the plug 100. Both the first mark 124 and the second mark 112 are triangular grooves. Such marks can be formed when the parts are manufactured. When the hood 12 is rotated to make the first mark 124 correspond to the corresponding angles of the second mark 112, the hood 12 is in the pre-positioned state, which can help the operator to perform the pre-positioning operation.

[0042] In order to perform the alignment operation more intuitively, an alignment mark 26 is provided on the outer peripheral surface of the socket main housing 21. The alignment mark 26 is also formed by a triangular groove. When the plug 100 is plugged into the socket 200, the first mark 124 on the hood 12 corresponds to the alignment mark 26 on the socket main housing 21, so that the positioning groove 24 is aligned with the positioning key 111, and the staple 25 is aligned with the curved groove opening 1231, that is, the plug main housing 11 and the hood 12 are in an aligned state, and the first mark 124 constitutes an alignment mark. In this way, the operator does not need to observe the position of the positioning groove 24 to perform the alignment operation, which is conducive to improving efficiency. Since the plug main housing 11 does not need to be exposed outside the hood 12 to facilitate the operator to observe the alignment state of the positioning groove 24 and the positioning key 111, the head end of the plug main housing 11 located at the connector plug-in end can be placed in the hood 12 without protruding from the hood 12, which is conducive to reducing the axial size of the plug 100. In order to more conveniently know the angle of the plug 100 relative to the socket 200, an indication plane 125 is provided on the circumferential outer wall of the screwing section 122 of the hood 12. The indication plane 125 can be used for the operator to touch and assist the alignment operation.

[0043] In other implementations, a staple may be provided on the connecting cap, and a curved groove may be provided on the main housing of the socket.

[0044] In other embodiments, a hollow structure may be provided at the pre-positioning protrusion of the shell to form a spring structure, so that both the pre-positioning protrusion and the pre-positioning slot can be deformed; or, a spring structure may be provided only at the pre-positioning protrusion of the shell to ensure that the pre-positioning protrusion can be removed from the pre-positioning slot.

[0045] In other embodiments, when the wall thickness of the hood is thin enough or the plastic elasticity of the hood body is good, the spring structure may not be provided, and the elastic deformation ability of the limiting protrusion itself can be used to avoid the pre-positioning protrusion.

[0046] In other implementations, the spring sheet structure may also be a cantilever structure, that is, one end is not connected to the side wall of the hollow cavity.

[0047] In other embodiments, the limiting protrusion may be disposed on the end surface of the rear end of the hood, and the limiting groove may be disposed on the step surface of the main housing of the plug facing the plug-in end, so that the limiting protrusion extends into the limiting groove to limit the rotational travel of the hood.

[0048] In other implementations, the alignment mark and the alignment mark may also be in a straight line shape.

[0049] In other embodiments, the head end of the plug main housing may be made to protrude from the connecting cap, and in this case, an alignment mark for cooperating with the alignment mark on the socket main housing may be provided on the plug main housing. In other embodiments, positioning keys and positioning grooves may not be provided, and a circumferential positioning structure may be formed by using a through hole of the plug for inserting the pin contact into the socket contact, and the circumferential relative position of the plug main housing and the socket main housing may be ensured by using the through hole and the pin contact to cooperate.

[0050] Embodiment 2 of the connector assembly of the present invention: The connector assembly in this embodiment is different from the connector assembly in the above-mentioned embodiment 1 in that the pre-positioning structure and the rotation travel limit structure of the hood and the plug main housing are arranged differently. The pre-positioning structure and the rotation travel limit structure in this embodiment are arranged independently of each other. Figure 7 , Figure 8 , Fig. 9 , Fig.10 As shown, the outer wall of the main housing of the plug is provided with a housing pre-positioning groove 114 and a housing limiting convex portion 115 at different positions in the circumferential direction, and the inner wall of the hood is provided with a hood pre-positioning convex portion 1213 and a hood limiting groove 1214 at different positions in the circumferential direction, respectively. The hood limiting groove 1214 and the housing pre-positioning groove 114 are arranged at intervals in the circumferential direction of the main housing of the plug. The hood pre-positioning convex portion 1213 is inserted into the housing pre-positioning groove 114 to put the hood in a pre-positioned state. The hood limiting groove 1214 into which the housing limiting convex portion 115 extends has a groove space for avoiding the housing limiting convex portion 115 when the hood rotates relative to the main housing of the plug. The hood limiting groove 1214 is provided with a first stop side wall and a second stop side wall at both ends of its extension direction. When the hood is in the pre-positioned state, the first stop side wall stops the housing limiting convex portion 115. When the plug 100 and the socket 200 are locked and connected through the pin curved groove connection structure by rotating the connecting cap, the second stop side wall stops the housing limit protrusion 115. The housing limit protrusion 115 is a rectangular protrusion, and the side of the rectangular protrusion cooperates with the corresponding stop side wall to facilitate reliable stop. When the hood is rotated, the hood pre-positioning protrusion 1213 can be disengaged from the shell pre-positioning slot 114. The portion of the hood where the hood pre-positioning protrusion 1213 is provided with a hollow cavity 127 to form a spring structure 126. The hood pre-positioning protrusion 1213 is arranged in the middle of the spring structure 126. The hood pre-positioning protrusion 1213 is an arched protrusion. Correspondingly, the shell pre-positioning slot 114 is an arched groove with an arched cross-section. The surface of the hood pre-positioning protrusion 1213 and the groove wall of the shell pre-positioning slot 114 are both smooth arc surfaces, so that the hood pre-positioning protrusion 1213 can be easily inserted into and disengaged from the shell pre-positioning slot 114.

[0051] Embodiment 3 of the connector assembly of the present invention: The connector assembly in this embodiment is different from the connector assembly in the above-mentioned embodiment 2 in that the structure of the limiting groove and the limiting protrusion is different. Fig.11 As shown, in this embodiment, a hood limiting protrusion 1215 is provided on the inner wall of the hood, and a shell limiting groove 116 is provided on the outer wall of the plug main shell. The hood limiting protrusion 1215 cooperates with the shell limiting groove 116 to limit the rotational travel of the hood on the plug main shell.

[0052] Embodiments of the connector of the present invention: The connector in this embodiment has the same structure as the plug in any one of the embodiments 1-3 of the above-mentioned connector assembly, and will not be described in detail here.

[0053] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connector, characterized in that: The invention comprises a main shell and a connecting cap (12) rotatably mounted on the main shell, the connecting cap being provided with a staple or a curved groove (123) of a staple curved groove connection structure, one of the main shell and the connecting cap being provided with a pre-positioning protrusion, and the other being provided with a pre-positioning groove for the pre-positioning protrusion to be inserted into so that the connecting cap (12) is in a pre-positioning state, the pre-positioning protrusion and / or the pre-positioning groove being provided with an elastically deformable structure so that the pre-positioning protrusion can be disengaged from the pre-positioning groove when the connecting cap (12) is rotated and locked relative to the main shell, and a circumferential positioning structure for circumferential positioning with a matching connector is provided on the connector, and when the pre-positioning protrusion is inserted into the pre-positioning groove, a set phase difference is provided between the circumferential positioning structure and the connecting cap (12).

2. The connector according to claim 1, characterized in that: The elastically deformable structure is a spring structure (126).

3. The connector according to claim 2, characterized in that: A hollow cavity (127) is provided on the main shell and / or the connecting cap (12), and two ends of the spring structure (126) in the extension direction are connected to opposite side walls of the corresponding hollow cavity (127).

4. The connector according to claim 1, 2 or 3, characterized in that: A main housing or a connecting cap (12) provided with a pre-positioning slot is provided with a limiting slot (128) for the pre-positioning protrusion to extend into, the limiting slot (128) having a slot space for avoiding the pre-positioning protrusion when the connecting cap (12) rotates relative to the main housing, and the limiting slot (128) is provided with a first stop side wall (1211) and a second stop side wall (1212) at both ends of its extension direction; when the connecting cap (12) is in the pre-positioning state, the first stop side wall (1211) contacts the pre-positioning protrusion. The pre-positioning convex portion forms a stop; when the connector and the adapting connector are locked and connected via the clamping curved groove connection structure by rotating the connecting cap (12), the second stop side wall (1212) forms a stop for the pre-positioning convex portion; the groove bottom of the limiting groove (128) is provided with a limiting protrusion (129) close to the first stopping side wall (1211) and away from the second stopping side wall (1212), and the pre-positioning groove is formed between the limiting protrusion (129) and the first stopping side wall (1211).

5. The connector according to claim 1, 2 or 3, characterized in that: One of the main shell and the connecting cap (12) is provided with a limiting protrusion, and the other is provided with a limiting groove for the limiting protrusion to extend into. The limiting groove and the pre-positioning slot are arranged at intervals in the circumferential direction of the main shell. The limiting groove has a slot space that avoids the limiting protrusion when the connecting cap (12) rotates relative to the main shell. The limiting groove is provided with a first stop side wall (1211) and a second stop side wall (1212) at both ends of its extension direction. When the connecting cap (12) is in a pre-positioning state, the first stop side wall (1211) stops the limiting protrusion. When the connector and the adapter connector are locked and connected through the staple curved groove connection structure by rotating the connecting cap (12), the second stop side wall (1212) stops the limiting protrusion.

6. The connector according to claim 5, characterized in that: The limiting groove is arranged on the outer wall of the main shell, and the limiting protrusion is arranged on the inner wall of the connecting cap (12); or the limiting groove is arranged on the inner wall of the connecting cap (12), and the limiting protrusion is arranged on the outer wall of the main shell.

7. The connector according to claim 1, 2 or 3, characterized in that: One of the pre-positioning protrusion and the pre-positioning groove is arranged on the outer wall of the main shell body, and the other is arranged on the inner wall of the connecting cap (12).

8. The connector according to claim 1, 2 or 3, characterized in that: A first mark (124) is provided on the outer peripheral surface of one end of the hood (12) located at the plug-in end of the connector, the connector comprises a plug-in body, the plug-in body comprises the main shell, and a second mark (112) is provided on the end surface of the plug-in body located at the plug-in end of the connector. When the hood (12) is rotated so that the first mark (124) corresponds to the second mark (112), the hood (12) is in a pre-positioned state.

9. The connector according to claim 1, 2 or 3, characterized in that: The main housing or the connecting cap (12) is provided with an alignment mark for corresponding to an alignment mark (26) on the housing of the adapter connector so as to align the main housing with the adapter connector.

10. The connector according to claim 1, 2 or 3, characterized in that: The hood (12) is provided with an alignment mark for corresponding to an alignment mark (26) on the housing of the adapter connector so as to align the main housing with the adapter connector, and one end of the main housing located at the connector plugging end is located within the hood (12) without protruding from the hood (12).

11. The connector according to claim 1, 2 or 3, characterized in that: An indication plane (125) for indicating the position of the connecting hood (12) relative to the matching connector is provided on the circumferential outer wall of the connecting hood (12).

12. A connector assembly, comprising a connector and an adapter connector adapted to be plugged with the connector, characterized in that: The connector is the connector described in any one of claims 1 to 11.

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