Connectors and connector components

Abstract

The invention relates to a connector and a connector assembly. The connector assembly comprises a connector and a cable connected to the connector. An insulator is fixed in a shell of the connector, a contact piece is arranged on the insulator, a threading hole for allowing the cable to pass through the shell and a avoidance opening for allowing the insulator to be exposed from an inner cavity of the shell are arranged on the shell, the threading hole and the avoidance opening are oriented vertically, the shell comprises an upper shell and a lower shell, the avoidance opening is arranged on the lower shell, the threading hole is arranged on the lower shell or the upper and lower shells are buckled together to enclose the threading hole, the insulator is fixedly mounted on the lower shell, the contact piece has a wiring terminal exposed in the inner cavity of the shell, the upper shell and the lower shell are sealed and buckled together, and the wiring terminals of the insulator and the contact piece are exposed after the upper shell is opened, so that the end of the cable is placed above the insulator, and wiring can be conveniently realized.

Description

Technical Field

[0001] The present invention relates to the field of electrical connectors, and in particular to connectors and connector components. Background Art

[0002] The servo motor is powered and transmits signals through a cable plug and a socket on the motor. Currently, in order to adapt to a smaller installation space, most plugs are required to have 90° outlets, that is, the outlet direction of the cable is perpendicular to the direction of the plug end for mating with the socket, so as to reduce the overall height of the servo motor. The servo motor signal is shielded. When the plug is wired, the shielding needs to be processed at the same time. The plug shell is generally an integrated structure. The plug shell is provided with a threading port for the cable to pass through and a avoidance port for the insulator in the shell to be exposed from the shell. At the same time, the contact is exposed from the avoidance port of the shell, that is, there are only two openings on the shell, namely, the threading hole and the avoidance port. When wiring, the cable needs to be passed through the threading hole into the inner cavity of the shell, and then the cable end is passed through the avoidance port on the shell, so that the cable extends out of the avoidance port for a sufficient length to achieve wiring and shielding, so that the cable is fixedly connected to the contact and the contact is installed on the insulator, the cable shield is connected to the shielding sheet, and the cable is withdrawn after wiring and shielding is processed, and the contact, insulator and shielding sheet are installed in the cavity of the plug shell. The whole operation is very inconvenient. Summary of the invention

[0003] The purpose of the present invention is to provide a connector to solve the problem that the current connector is inconvenient to wire; the purpose of the present invention is also to provide a connector assembly to solve the problem that the current connector is inconvenient to wire.

[0004] The technical solution of the connector of the present invention is:

[0005] A connector comprises a shell, an insulator is fixed in the shell, a contact is mounted on the insulator, a threading hole for allowing a cable to pass through the shell and a avoidance opening for allowing the insulator to be exposed from an inner cavity of the shell are provided on the shell, the threading hole and the avoidance opening are oriented vertically, the shell comprises an upper shell and a lower shell, the avoidance opening is arranged on the lower shell, the threading hole is arranged on the lower shell or the upper and lower shells are buckled together to form the threading hole, the insulator is fixedly mounted on the lower shell, the contact has a wiring terminal exposed in the inner cavity of the shell, the upper shell and the lower shell are sealed and buckled together, and the wiring terminals of the insulator and the contact are exposed after the upper shell is opened.

[0006] Beneficial effect: by dividing the shell into an upper and a lower shell, an upward opening can be formed on the upper side of the lower shell after the upper shell is opened, and after the insulator and the contact are installed in the lower shell, the wiring terminal of the contact can be exposed from the opening formed by opening the upper shell, so that the end of the cable is placed above the insulator, and wiring can be conveniently achieved. After the wiring is completed, the upper shell sealing buckle is installed on the lower shell to complete the wiring and sealing assembly of the connector. Since this structural form avoids the cable from passing out and returning at the avoidance port, the operational difficulty and complexity of the wiring assembly are greatly reduced, and the wiring efficiency is improved.

[0007] Furthermore, the contacts are arranged in rows and there are more than two rows, at least two adjacent rows of contacts include power contacts, the rows of contacts are arranged at intervals in the extension direction of the threading holes, the arrangement direction of the contacts in each row is perpendicular to the extension direction of the threading holes, and the connection terminals of adjacent rows of contacts are arranged in a stepped manner from low to high in the direction away from the threading holes.

[0008] Beneficial effects: With such an arrangement, the aspect ratio of the connector is relatively small, which is conducive to miniaturized design; at the same time, the rows of contacts are arranged in a stepped manner, which can increase the creepage distance between adjacent rows of contacts, prevent high-voltage breakdown or leakage, and improve the life and stability of the connector; moreover, the arrangement from low to high in the direction away from the threading hole can facilitate the connection operation between the contacts and the cables, which is conducive to avoiding interference between contacts in different rows during wiring.

[0009] Furthermore, the insulator includes separate insulating parts, the number of the insulating parts is equal to the number of rows of contact pieces, each insulating part is correspondingly provided with a row of contact pieces, and the insulating parts are detachably connected to each other.

[0010] Beneficial effects: It is convenient to manufacture and install the insulator, and to arrange the contact pieces in a stepped manner on the insulator.

[0011] Furthermore, in two adjacent insulating splits, the insulating split away from the threading hole is provided with an extension portion extending toward a side close to the threading hole, the insulating split close to the threading hole is located below the extension portion and is partially covered by the extension portion, the insulating split away from the threading hole is provided with a supporting surface upwardly supporting the wiring terminal of the corresponding contact piece, at least part of the supporting surface is arranged on the extension portion, the wiring terminal of the contact piece on the insulating split close to the threading hole extends toward a side close to the threading hole, and the extension portion covers a portion of the contact piece installed on the insulating split close to the threading hole and exposes the wiring terminal of the contact piece.

[0012] Beneficial effects: By covering the power contact with the extension part, the creepage distance can be increased to prevent breakdown; at the same time, the supporting surface is arranged on the extension part, which can reduce the size of the insulator, thereby facilitating the miniaturization of the connector.

[0013] Furthermore, one of the adjacent insulating parts is provided with a strong mounting protrusion, and the other is provided with a strong mounting hole, and the strong mounting protrusion and the strong mounting hole form a strong mounting fit.

[0014] Beneficial effects: simple structure and easy installation.

[0015] Furthermore, a supporting boss for supporting the power conductor of the cable is provided on the extension portion at one side of the supporting surface close to the threading hole, and a spacing groove is provided between the supporting boss and the supporting surface.

[0016] Beneficial effects: By setting the spacing grooves, the creepage distance between power contacts in different rows can be increased to prevent high voltage breakdown or leakage, and the spacing grooves can avoid the pads during welding.

[0017] Furthermore, the connection terminal of the contact piece is a horizontal extension section integrally connected to the contact piece, and the upper side surface of the horizontal extension section constitutes a welding connection surface for welding to the cable.

[0018] Beneficial effect: The contact piece is set as a contact piece welded with the cable, which facilitates the connection between the cable and the contact piece and is conducive to automatic wiring using automated equipment.

[0019] Furthermore, the avoidance opening is opposite to the upper opening of the lower shell body for buckling with the upper shell body, the upper opening of the lower shell body is larger than the avoidance opening, the lower shell body is provided with an insulator stop surface for stopping the insulator in the downward direction, and the insulator is installed on the lower shell body from top to bottom.

[0020] Beneficial effect: After the upper shell is disassembled, the insulator can be installed into the lower shell from top to bottom by utilizing the upper opening formed after the disassembly of the upper shell, without turning the connector over. The insulator and the contact installed therein can be easily pre-installed on the lower shell, the process is simple, the cost is reduced, and it is conducive to the reliable assembly of the insulator.

[0021] Furthermore, a buckle is provided on the insulator, and a corresponding slot is provided on the lower shell to cooperate with the buckle. The insulator is positioned and fixed on the lower shell through the engagement of the buckle with the slot and the stopping of the stopping surface of the insulator.

[0022] Beneficial effect: The insulator is connected to the lower shell by snapping and slotting, which facilitates installation operation.

[0023] Furthermore, the contact comprises a signal contact, which is used to connect with the signal transmission wire of the cable. The shell is a metal shell, and a shielding contact structure for contacting the shielding layer of the signal transmission wire of the cable is provided on the shell.

[0024] Beneficial effect: the shell is set as a metal shell and cooperates with the shielding contact structure to contact the shielding layer, so as to achieve shielding conduction, simple structure and reliable shielding.

[0025] Furthermore, the shielding contact structure includes a clamping portion arranged on the upper shell and a supporting portion arranged on the lower shell, so that when the upper and lower shells are buckled, the clamping portion and the supporting portion clamp the shielding layer of the signal transmission wire of the cable.

[0026] Beneficial effect: Through the cooperation of the pressing part and the supporting part, not only can a fixed support be formed for the signal transmission wire, but also the pressing contact of the shielding layer can be achieved by the buckling operation of the upper and lower shells, which is convenient for installation operation.

[0027] Furthermore, the pressing portion is an elastic pressing portion, and the supporting portion is a supporting groove.

[0028] Beneficial effect: The setting of the elastic part can form elastic contact with the shielding layer of the signal transmission wire, which can be compatible with manufacturing and assembly errors. At the same time, it can adapt to the use of the connector in a vibration environment and maintain reliable shielding conduction.

[0029] Furthermore, the threading hole is surrounded by threading grooves respectively provided on the upper shell and the lower shell, and wire clamping rubber blocks are respectively provided in the threading grooves. The two wire clamping rubber blocks are matched up and down to achieve sealing with the cable. A sealing ring extending along the matching edge is also provided between the matching surfaces of the upper and lower shells, and the sealing ring is integrally formed with one of the wire clamping rubber blocks.

[0030] Beneficial effect: The threading hole is surrounded by the upper shell and the lower shell, so that after opening the upper shell, the contact and the cable port can be completely exposed, the cable can be directly placed on the lower shell, and can be directly welded or crimped with the contact, which is convenient for automated wiring and eliminates the step of axially passing the cable through the threading hole, thereby simplifying the installation process, realizing automated wiring and reducing costs; at the same time, while the sealing ring and the wire clamping rubber block are used to achieve sealing cooperation between the upper and lower shells, the two wire clamping rubber blocks can cooperate to compress and contact the outer circumference of the cable, thereby sealing the tail of the cable at the threading hole.

[0031] Furthermore, a positioning protrusion is provided on the mating surface of one of the upper shell and the lower shell, and a positioning groove is provided on the other one, and the positioning protrusion and the positioning groove cooperate to achieve positioning when the upper and lower shells are buckled.

[0032] Beneficial effect: By inserting the positioning protrusion into the positioning groove, the upper and lower shells can be positioned after being buckled together, thereby preventing the upper and lower shells from shaking relative to each other.

[0033] Furthermore, the shell is a metal shell, and an insulating partition is provided on the inner side of the upper shell, and the insulating partition covers the top of the contact piece.

[0034] Beneficial effect: An insulating partition is arranged above the contact piece to separate the housing from the contact piece, thereby improving the insulation performance.

[0035] Furthermore, there are multiple contacts arranged in rows, each row of contacts includes power contacts and signal contacts, the power contacts and signal contacts in each row are arranged at intervals in a direction perpendicular to the axis of the threading hole, and the insulating partition includes a horizontal partition portion and a vertical partition portion, the horizontal partition portion covers the top of the contact, and the vertical partition portion blocks the power contact and the signal contact.

[0036] Beneficial effect: The vertical partition portion of the insulating partition separates the power contact from the signal contact, thereby improving the insulation effect between the signal contact and the power contact.

[0037] Furthermore, the threading hole is arranged on the lower shell, and the mating surfaces of the upper shell and the lower shell are inclined surfaces, which extend obliquely downward in a direction away from the threading hole.

[0038] Beneficial effect: The inclined mating surface can make the opening formed by opening the upper shell larger, and reduce the obstruction of the threading path by the side wall of the shell in the direction away from the threading hole, thereby facilitating the cable insertion operation.

[0039] Furthermore, a positioning column extending downward is provided on the side wall of the upper shell body near one end of the threading hole, and a positioning hole is provided on the lower shell body at a position corresponding to the positioning column. The positioning column is provided with an internal thread, and the positioning hole is a stepped through hole. The larger hole diameter portion is for the positioning column to be inserted, and the smaller hole diameter portion is used to form a screw through hole, so that the upper and lower shell bodies are fastened and connected by screws.

[0040] Beneficial effect: The positioning and mating of the upper and lower shells are achieved through the cooperation of the positioning column and the positioning hole, which avoids the setting of the inclined mating surface affecting the mating position of the upper and lower shells. In addition, by integrating a screw connection structure on the positioning structure, the connector structure can be simplified, which is beneficial to reducing the size of the connector.

[0041] The technical solution of the connector assembly of the present invention is:

[0042] A connector assembly includes a connector and a cable connected to the connector. The connector includes a shell, an insulator is fixed in the shell, a contact is mounted on the insulator, the shell is provided with a threading hole for the cable to pass through the shell and a avoidance opening for the insulator to be exposed from the inner cavity of the shell, the threading hole and the avoidance opening are oriented vertically, the shell includes an upper shell and a lower shell, the avoidance opening is arranged on the lower shell, the threading hole is arranged on the lower shell or the upper and lower shells are buckled together to form the threading hole, the insulator is fixedly mounted on the lower shell, the contact has a terminal exposed in the inner cavity of the shell, the upper shell and the lower shell are sealed and buckled together, and the terminal of the insulator and the contact is exposed after the upper shell is opened.

[0043] Beneficial effect: by dividing the shell of the connector into an upper and a lower shell, an upward opening can be formed on the upper side of the lower shell after the upper shell is opened, and after the insulator and the contact are installed in the lower shell, the wiring terminal of the contact can be exposed from the opening formed by opening the upper shell, so that the end of the cable is placed above the insulator, and wiring can be conveniently achieved. After the wiring is completed, the upper shell sealing buckle is installed on the lower shell to complete the wiring and sealing assembly of the connector. Since this structural form avoids the cable from passing out and returning at the avoidance opening, the operational difficulty and complexity of the wiring assembly are greatly reduced, and the wiring efficiency is improved.

[0044] Furthermore, the contacts are arranged in rows and there are more than two rows, at least two adjacent rows of contacts include power contacts, the rows of contacts are arranged at intervals in the extension direction of the threading holes, the arrangement direction of the contacts in each row is perpendicular to the extension direction of the threading holes, and the connection terminals of adjacent rows of contacts are arranged in a stepped manner from low to high in the direction away from the threading holes.

[0045] Beneficial effects: With such an arrangement, the aspect ratio of the connector is relatively small, which is conducive to miniaturized design; at the same time, the rows of contacts are arranged in a stepped manner, which can increase the creepage distance between adjacent rows of contacts, prevent high-voltage breakdown or leakage, and improve the life and stability of the connector; moreover, the arrangement from low to high in the direction away from the threading hole can facilitate the connection operation between the contacts and the cables, which is conducive to avoiding interference between contacts in different rows during wiring.

[0046] Furthermore, the insulator includes separate insulating parts, the number of the insulating parts is equal to the number of rows of contact pieces, each insulating part is correspondingly provided with a row of contact pieces, and the insulating parts are detachably connected to each other.

[0047] Beneficial effects: It is convenient to manufacture and install the insulator, and to arrange the contact pieces in a stepped manner on the insulator.

[0048] Furthermore, in two adjacent insulating splits, the insulating split away from the threading hole is provided with an extension portion extending toward a side close to the threading hole, the insulating split close to the threading hole is located below the extension portion and is partially covered by the extension portion, the insulating split away from the threading hole is provided with a supporting surface upwardly supporting the wiring terminal of the corresponding contact piece, at least part of the supporting surface is arranged on the extension portion, the wiring terminal of the contact piece on the insulating split close to the threading hole extends toward a side close to the threading hole, and the extension portion covers a portion of the contact piece installed on the insulating split close to the threading hole and exposes the wiring terminal of the contact piece.

[0049] Beneficial effects: By covering the power contact with the extension part, the creepage distance can be increased to prevent breakdown; at the same time, the supporting surface is arranged on the extension part, which can reduce the size of the insulator, thereby facilitating the miniaturization of the connector.

[0050] Furthermore, one of the adjacent insulating parts is provided with a strong mounting protrusion, and the other is provided with a strong mounting hole, and the strong mounting protrusion and the strong mounting hole form a strong mounting fit.

[0051] Beneficial effects: simple structure and easy installation.

[0052] Furthermore, a supporting boss for supporting the power conductor of the cable is provided on the extension portion at one side of the supporting surface close to the threading hole, and a spacing groove is provided between the supporting boss and the supporting surface.

[0053] Beneficial effects: By setting the spacing grooves, the creepage distance between power contacts in different rows can be increased to prevent high voltage breakdown or leakage, and the spacing grooves can avoid the pads during welding.

[0054] Furthermore, the connection terminal of the contact piece is a horizontal extension section integrally connected to the contact piece, and the upper side surface of the horizontal extension section constitutes a welding connection surface for welding to the cable.

[0055] Beneficial effect: The contact piece is set as a contact piece welded with the cable, which facilitates the connection between the cable and the contact piece and is conducive to automatic wiring using automated equipment.

[0056] Furthermore, the avoidance opening is opposite to the upper opening of the lower shell body for buckling with the upper shell body, the upper opening of the lower shell body is larger than the avoidance opening, the lower shell body is provided with an insulator stop surface for stopping the insulator in the downward direction, and the insulator is installed on the lower shell body from top to bottom.

[0057] Beneficial effect: After the upper shell is disassembled, the insulator can be installed into the lower shell from top to bottom by utilizing the upper opening formed after the disassembly of the upper shell, without turning the connector over. The insulator and the contact installed therein can be easily pre-installed on the lower shell, the process is simple, the cost is reduced, and it is conducive to the reliable assembly of the insulator.

[0058] Furthermore, a buckle is provided on the insulator, and a corresponding slot is provided on the lower shell to cooperate with the buckle. The insulator is positioned and fixed on the lower shell through the engagement of the buckle with the slot and the stopping of the stopping surface of the insulator.

[0059] Beneficial effect: The insulator is connected to the lower shell by snapping and slotting, which facilitates installation operation.

[0060] Furthermore, the contact comprises a signal contact, which is used to connect with the signal transmission wire of the cable. The shell is a metal shell, and a shielding contact structure for contacting the shielding layer of the signal transmission wire of the cable is provided on the shell.

[0061] Beneficial effect: the shell is set as a metal shell and cooperates with the shielding contact structure to contact the shielding layer, so as to achieve shielding conduction, simple structure and reliable shielding.

[0062] Furthermore, the shielding contact structure includes a clamping portion arranged on the upper shell and a supporting portion arranged on the lower shell, so that when the upper and lower shells are buckled, the clamping portion and the supporting portion clamp the shielding layer of the signal transmission wire of the cable.

[0063] Beneficial effect: Through the cooperation of the pressing part and the supporting part, not only can a fixed support be formed for the signal transmission wire, but also the pressing contact of the shielding layer can be achieved by the buckling operation of the upper and lower shells, which is convenient for installation operation.

[0064] Furthermore, the pressing portion is an elastic pressing portion, and the supporting portion is a supporting groove.

[0065] Beneficial effect: The setting of the elastic part can form elastic contact with the shielding layer of the signal transmission wire, which can be compatible with manufacturing and assembly errors. At the same time, it can adapt to the use of the connector in a vibration environment and maintain reliable shielding conduction.

[0066] Furthermore, the threading hole is surrounded by threading grooves respectively provided on the upper shell and the lower shell, and wire clamping rubber blocks are respectively provided in the threading grooves. The two wire clamping rubber blocks are matched up and down to achieve sealing with the cable. A sealing ring extending along the matching edge is also provided between the matching surfaces of the upper and lower shells, and the sealing ring is integrally formed with one of the wire clamping rubber blocks.

[0067] Beneficial effect: The threading hole is surrounded by the upper shell and the lower shell, so that after opening the upper shell, the contact and the cable port can be completely exposed, the cable can be directly placed on the lower shell, and can be directly welded or crimped with the contact, which is convenient for automated wiring and eliminates the step of axially passing the cable through the threading hole, thereby simplifying the installation process, realizing automated wiring and reducing costs; at the same time, while the sealing ring and the wire clamping rubber block are used to achieve sealing cooperation between the upper and lower shells, the two wire clamping rubber blocks can cooperate to compress and contact the outer circumference of the cable, thereby sealing the tail of the cable at the threading hole.

[0068] Furthermore, a positioning protrusion is provided on the mating surface of one of the upper shell and the lower shell, and a positioning groove is provided on the other one, and the positioning protrusion and the positioning groove cooperate to achieve positioning when the upper and lower shells are buckled.

[0069] Beneficial effect: By inserting the positioning protrusion into the positioning groove, the upper and lower shells can be positioned after being buckled together, thereby preventing the upper and lower shells from shaking relative to each other.

[0070] Furthermore, the shell is a metal shell, and an insulating partition is provided on the inner side of the upper shell, and the insulating partition covers the top of the contact piece.

[0071] Beneficial effect: An insulating partition is arranged above the contact piece to separate the housing from the contact piece, thereby improving the insulation performance.

[0072] Furthermore, there are multiple contacts arranged in rows, each row of contacts includes power contacts and signal contacts, the power contacts and signal contacts in each row are arranged at intervals in a direction perpendicular to the axis of the threading hole, and the insulating partition includes a horizontal partition portion and a vertical partition portion, the horizontal partition portion covers the top of the contact, and the vertical partition portion blocks the power contact and the signal contact.

[0073] Beneficial effect: The vertical partition portion of the insulating partition separates the power contact from the signal contact, thereby improving the insulation effect between the signal contact and the power contact.

[0074] Furthermore, the threading hole is arranged on the lower shell, and the mating surfaces of the upper shell and the lower shell are inclined surfaces, which extend obliquely downward in a direction away from the threading hole.

[0075] Beneficial effect: The inclined mating surface can make the opening formed by opening the upper shell larger, and reduce the obstruction of the threading path by the side wall of the shell in the direction away from the threading hole, thereby facilitating the cable insertion operation.

[0076] Furthermore, a positioning column extending downward is provided on the side wall of the upper shell body near one end of the threading hole, and a positioning hole is provided on the lower shell body at a position corresponding to the positioning column. The positioning column is provided with an internal thread, and the positioning hole is a stepped through hole. The larger hole diameter portion is for the positioning column to be inserted, and the smaller hole diameter portion is used to form a screw through hole, so that the upper and lower shell bodies are fastened and connected by screws.

[0077] Beneficial effect: The positioning and mating of the upper and lower shells are achieved through the cooperation of the positioning column and the positioning hole, which avoids the setting of the inclined mating surface affecting the mating position of the upper and lower shells. In addition, by integrating a screw connection structure on the positioning structure, the connector structure can be simplified, which is beneficial to reducing the size of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figure 1 The overall structure of the connector embodiment 1 is shown in FIG. Figure 1 ;

[0079] Figure 2 The overall structure of the connector embodiment 1 is shown in FIG. Figure 2 ;

[0080] Figure 3 It is a schematic structural diagram of the upper and lower shells of the embodiment 1 of the connector when they are separated;

[0081] Figure 4 for Figure 1 Schematic diagram of the structure of the middle insulator and the lower shell in the assembled state;

[0082] Figure 5 for Figure 4 A schematic diagram of the structure of the middle and lower shells;

[0083] Figure 6 for Figure 4 A schematic diagram of the structure of the insulator and the contact piece in the assembly state;

[0084] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure;

[0085] Figure 8 for Figure 6 Schematic diagram of the structure of the middle and rear parts;

[0086] Fig. 9 It is a structural schematic diagram of the upper shell and the insulating partition in the assembled state;

[0087] Fig.10 for Fig. 9 A schematic diagram of the structure of the upper shell in FIG.

[0088] Fig.11 It is a schematic diagram of the relative position relationship between the insulating partition and the insulator;

[0089] Fig.12 This is a schematic structural diagram of embodiment 2 of the connector.

[0090] In the figure:

[0091] 1. Upper shell; 11. Rib plate; 12. Upper threading groove; 121. Upper occlusal groove section; 122. Upper rubber block mounting groove section; 13. Elastic sheet; 14. Insertion protrusion; 15. Positioning protrusion; 16. Sealing ring mounting groove; 17. Fixing hole; 18. Upper rubber block fixing protrusion;

[0092] 2. Lower shell; 21. Avoidance; 22. Lower threading groove; 221. Lower bite groove section; 222. Lower rubber block installation groove section; 23. Support column; 231. Support groove; 24. Insertion hole; 25. Positioning groove; 26. Pressing protrusion; 27. Fixing protrusion; 28. Lower rubber block fixing protrusion; 29. ​​Slot; 210. Upper opening; 211. Insulator stop surface;

[0093] 201. Contact mounting hole; 3. Locking wrench; 4. Threading hole;

[0094] 5. Insulator; 51. Front split; 511. Strong installation hole; 512. Support boss; 513. Extension; 514. Notch; 515. Spacing groove; 52. Rear split; 521. Strong installation protrusion; 53. Buckle;

[0095] 6. Upper sealing member; 61. Sealing ring; 62. Upper clamping rubber block; 7. Lower sealing member;

[0096] 8. Power contact; 9. Signal contact; 10. Brake contact; 101. Front row contact; 102. Rear row contact; 200. Welding connection surface;

[0097] 300, insulating partition; 301, vertical partition portion; 302, vertical plate portion; 303, horizontal partition portion; 304, rib plate insertion slot;

[0098] 401, upper shell; 402, lower shell; 403, annular sealing ring; 404, screw; 405, positioning column; 406, positioning hole. DETAILED DESCRIPTION

[0099] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0100] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0101] It should be noted that the terms that may appear in the specific embodiments of the present invention, such as relational terms such as "first" and "second", are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms that may appear, such as "include", "comprise" or any other variants thereof, are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the possible statement "including a..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0102] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0103] In the description of the present invention, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0104] The present invention is further described in detail below in conjunction with embodiments.

[0105] Embodiment 1 of the connector of the present invention:

[0106] like Figure 1 , Figure 2 and Figure 3As shown, the connector is a plug, which includes a shell. The shell is a metal shell. The shell includes an upper shell 1 and a lower shell 2 that are mounted together. A locking wrench 3 is installed on the upper shell 1. The locking wrench 3 is a U-shaped structure. A hinge structure is provided between the left and right side arms of the locking wrench 3 and the left and right outer side walls of the upper shell 1, so that the locking wrench 3 can be rotatably installed on the upper shell 1. Locking structures are provided on the left and right side arms of the locking wrench 3, and a locking matching structure is provided on the socket adapted to the plug, so that after the plug is plugged into the adapted socket, the locking structure on the socket shell is locked with the locking matching structure on the socket by rotating the locking wrench 3 to prevent the plug and socket from being disengaged.

[0107] An insulator 5 is installed in the shell, and a contact is installed on the insulator 5. The shell is provided with a threading hole 4 for the cable to pass through the shell and a avoidance opening 21 for the plug-in end of the insulator 5 and the contact to be exposed from the inner cavity of the shell. The threading hole 4 and the avoidance opening 21 are oriented vertically. In this embodiment, the threading hole 4 extends in the front-to-back direction, and the avoidance opening 21 faces downward. The avoidance opening 21 is arranged on the lower shell 2, and the threading hole 4 is surrounded by the upper shell 1 and the lower shell 2. The insulator 5 is fixedly installed on the lower shell 2, and the contact is exposed in the inner cavity of the shell. The mating surfaces of the upper shell 1 and the lower shell 2 are sealed by the upper seal 6 and the lower seal 7.

[0108] The upper seal 6 is mounted on the upper shell 1, and includes an upper wire clamping rubber block 62 and a sealing ring 61 extending around the edges of the upper shell 1 and the lower shell 2. The upper wire clamping rubber block 62 and the sealing ring 61 are integrally formed. The lower seal 7 is mounted on the lower shell 2. The lower seal 7 is a lower wire clamping rubber block. The upper wire clamping rubber block 62 and the lower wire clamping rubber block are respectively provided with arc grooves to clamp the cable and form a seal with the outer peripheral surface of the cable after the two wire clamping rubber blocks are matched, thereby achieving the sealing between the upper shell 1 and the lower shell 2 and the sealing between the upper shell 1, the lower shell 2 and the cable.

[0109] like Figure 4 , Figure 5 , Figure 6As shown, the lower shell 2 includes a main body and a convex portion integrally arranged with the main body. The main body and the convex portion of the lower shell 2 are both rectangular structures. The main body of the lower shell 2 is a cavity with an upper opening 210 facing upwards, and the cavity is surrounded by a bottom wall and a circumferential side wall. The convex portion of the lower shell 2 is arranged on the rear side wall of the main body. The avoidance opening 21 is arranged on the bottom wall of the main body of the lower shell 2, and the size of the upper opening 210 of the lower shell 2 is larger than the size of the avoidance opening 21, and the avoidance opening 21 is arranged close to the front side wall of the main body of the lower shell 2. The insulator 5 is installed at the avoidance opening 21, and the positions corresponding to the avoidance opening 21 are respectively provided with snap-fitting protrusions on the left and right side walls of the main body of the lower shell 2. The snap-fitting protrusions extend upward from the mating surface of the lower shell 2, and a snap groove 29 is provided on the inner side surface of the snap-fitting protrusion. The left and right side walls of the insulator 5 are respectively provided with snap buckles 53, and the snap buckles 53 are wedge-shaped protrusions protruding from the side walls of the insulator 5. The buckle 53 cooperates with the slot 29 to realize the clamping and fixing of the insulator 5 on the lower shell 2. The upper wall of the slot 29 blocks the insulator 5 in the upward direction, and the inner part of the upper end surface of the circumferential side wall of the lower shell 2 forms an insulator stop surface 211 for blocking the insulator 5 in the downward direction.

[0110] The insulator 5 includes two separately arranged insulating parts, which are a front part 51 and a rear part 52. The front part 51 is arranged farther away from the threading hole 4 than the rear part 52. The left and right side walls of the front part 51 and the rear part 52 are both provided with buckles 53. Correspondingly, the left and right side walls of the main body of the lower shell 2 are respectively provided with two snap-on protrusions.

[0111] There are multiple contacts, including power contacts 8, signal contacts 9 and brake contacts 10, each contact is arranged in a row and arranged in two rows, divided into a front row contact 101 and a rear row contact 102, each row of contacts has a power contact 8, a signal contact 9 and a brake contact 10, the contacts in each row are arranged at intervals along the left and right direction, and the power contacts 8, signal contacts 9, and brake contacts 10 in the front row contact 101 correspond to the power contacts 8, signal contacts 9, and brake contacts 10 in the rear row contact 102. In this embodiment, there are four power contacts 8, four signal contacts 9, and two brake contacts 10.

[0112] The front row of contacts 101 is mounted on the front body 51, and the rear row of contacts 102 is mounted on the rear body 52. ​​The contact is L-shaped as a whole, and has a terminal for connecting to a cable, a plug-in terminal for plugging into a matching contact on a socket, and an intermediate fixing portion between the plug-in terminal and the terminal. The terminal extends from front to back, and the plug-in terminal extends from top to bottom. The front body 51 and the rear body 52 are both provided with contact mounting holes 201 for each contact to be embedded. The contact mounting holes 201 are through holes from top to bottom. The intermediate fixing portion of the contact has a forced mounting structure to force the contact to be fixed in the contact mounting hole 201. The plug-in terminal of the contact is inserted into the contact mounting hole 201 to plug into and contact with the contact of the matching socket.

[0113] The connection terminal of the contact is in sheet shape and has a welding connection surface 200 formed on the upper side surface for welding connection with the corresponding wire in the cable. Each insulating split body is provided with a contact support platform, each contact support platform extends in the front-to-back direction and is used to support each contact below, and the upper surface of the contact support platform constitutes a support surface. The contact support platform includes a front support platform provided on the front split body 51 and a rear support platform provided on the rear split body 52.

[0114] like Figure 6 , Figure 7 and Figure 8 As shown, the front split body 51 is overall in a "7" shape, having an extension portion 513 extending toward a side close to the threading hole 4 and a front insertion portion extending downward, the contact mounting hole 201 on the front split body 51 is arranged on the front insertion portion, and the front support platform is arranged on the extension portion 513.

[0115] The rear split body 52 is in an "inverted U" shape as a whole, including a horizontally extending middle section and a baffle section and a rear plug-in section extending vertically downward. The contact piece mounting hole 201 on the rear split body 52 is arranged on the rear plug-in section, and the rear support platform is arranged on the middle section of the rear split body 52.

[0116] After the front split body 51 and the rear split body 52 are fixed together, a part of the rear split body 52 is covered by the extension part 513, and the rear support platform on the rear split body 52 and the contact on the rear support platform are located below the extension part 513. The extension part 513 covers the contact installation hole 201 on the rear split body 52 and covers the part of the contact on the rear split body 52 located in front of the terminal, so that the terminal of the contact on the rear split body 52 is exposed. The terminal of the front and rear rows of contacts is arranged in a stepped manner, and the terminal of the front row contact 101 is higher than the terminal of the rear row contact 102.

[0117] A supporting boss 512 is provided on the extension portion 513 at the rear side of the contact support platform supporting the power contact 8. The supporting boss 512 is used to support the power conductor of the cable. A spacing groove 515 is formed between the supporting boss 512 and the corresponding contact support platform for supporting the power contact 8 to increase the creepage distance between the power contacts 8 in the front and rear rows.

[0118] The front split body 51 is provided with a strong installation hole 511 , and the rear split body 52 is correspondingly provided with a strong installation protrusion 521 . The strong installation protrusion 521 and the strong installation hole 511 form a strong installation fit to fix the front split body 51 and the rear split body 52 together.

[0119] like Fig. 9 , Fig.10 , Fig.11 As shown, the upper shell 1 includes a main body and a convex portion integrally provided with the main body. The main body and the convex portion of the upper shell 1 are both rectangular structures. The main body of the upper shell 1 is a cavity with a downward opening, and the cavity is surrounded by a bottom wall and a circumferential side wall. The convex portion of the upper shell 1 is arranged on the rear side wall of the main body. A rib plate 11 is provided on the inner side surface of the bottom wall of the upper shell 1. The rib plate 11 is a flat plate structure and extends in the front-to-back direction.

[0120] The upper shell 1 is provided with an insulating partition 300, which has a horizontal partition portion 303, a vertical partition portion 301 and two vertical plate portions 302. The vertical partition portion 301 is located on one side of the two vertical plate portions 302, and the vertical partition portion 301 and the two vertical plate portions 302 are arranged at intervals in the left-right direction. A rib plate insertion groove 304 extending downward from the horizontal partition portion 303 to the vertical partition portion 301 is provided at the position of the upper plate surface of the horizontal partition portion 303 corresponding to the vertical partition portion 301. The rib plate insertion groove 304 extends in the front-to-back direction with the notch facing upward. The rib plate 11 on the upper shell 1 is inserted into the rib plate insertion groove 304 and forms a tight fit, so that the insulating partition 300 is fixed in the upper shell 1.

[0121] The extension portion 513 is provided with a notch 514 for avoiding the vertical partition portion 301. After the upper shell 1 and the lower shell 2 are matched together, the vertical partition portion 301 extends into the notch 514 on the outer edge portion and separates the power contacts 8 from the signal contacts 9 in the front and rear rows of contacts. At the same time, one of the two vertical plate portions 302 close to the vertical partition portion 301 extends between the two power contacts 8 in the front row of contacts 101 to separate the two power contacts 8 in the front row of contacts 101, and the other vertical plate separates the brake contact 10 from the power contact 8 in the front row of contacts 101. The horizontal partition portion 303 separates the wiring terminals of each contact from the inner side wall of the upper shell 1.

[0122] like Figure 5 and Fig.10As shown, a lower threading groove 22 is provided on the convex part of the lower shell 2, and an upper threading groove 12 is provided on the convex part of the upper shell 1, so as to form a threading hole 4 after the upper shell 1 and the lower shell 2 are aligned. The lower threading groove 22 includes a lower bite groove section 221 and a lower rubber block installation groove section 222. The lower bite groove section 221 is a semicircular arc groove, and a row of bite protrusions are provided on the inner wall of the groove. A plurality of bite protrusions are provided at intervals along the circumference of the semicircular arc groove. The lower rubber block installation groove section 222 is a square groove structure, located at the front side of the lower bite groove section 221, and is used to install the lower clamping rubber block.

[0123] The upper threading groove 12 includes an upper bite groove section 121 and an upper rubber block installation groove section 122. The upper bite groove section 121 is a semicircular arc groove. Two rows of bite protrusions are arranged on the inner wall of the groove along the axial front and rear intervals. Each row of bite protrusions is arranged along the circumferential interval of the semicircular arc groove. The upper rubber block installation groove section 122 is a square groove structure, located at the front side of the upper bite groove section 121, and the upper rubber block installation groove section 122 is used to install the upper wire clamping rubber block. The rubber block installation groove sections of the upper threading groove 12 and the lower threading groove 22 are respectively provided with an upper rubber block fixing protrusion 18 and a lower rubber block fixing protrusion 28. Correspondingly, a fixing groove is provided on the wire clamping rubber block, and the fixing of the wire clamping rubber block is achieved by inserting the clamping block fixing protrusion into the fixing groove in a tight fit.

[0124] In the front-to-back direction, a row of engaging protrusions on the lower engaging groove section 221 is located between two rows of engaging protrusions on the upper engaging groove section 121 , so as to bite the cable sheath tightly after the engagement, thereby playing a tensile resistance role.

[0125] The housing is provided with a shielding contact structure for contacting the shielding layer of the signal transmission conductor of the cable. The shielding contact structure includes a clamping portion provided on the upper housing 1 and a supporting portion provided on the lower housing 2. The clamping portion is an elastic clamping portion, which is formed by a V-shaped elastic sheet 13. One side arm of the V-shape is fixed to the inner side of the upper housing 1, and one side is cantilevered in the inner cavity of the upper housing 1. A supporting column 23 is provided on the bottom wall of the lower housing 2. A supporting groove 231 is provided at the upper end of the supporting column 23. The supporting groove 231 constitutes a supporting portion. The supporting column 23 is located at the rear side of the signal contact member 9. When the upper housing 1 and the lower housing 2 are matched, the elastic sheet 13 cooperates with the supporting groove 231 on the supporting column 23 to elastically clamp the shielding layer of the signal transmission conductor of the cable.

[0126] A sealing ring mounting groove 16 for mounting a sealing ring 61 of an upper sealing member 6 is provided on the mating surface of the upper shell 1, and a pressing protrusion 26 is provided on the mating surface of the lower shell 2. When the upper shell 1 and the lower shell 2 are mated, the pressing protrusion 26 presses the sealing ring 61 to tighten the seal between the upper shell 1 and the lower shell 2.

[0127] A positioning groove 25 is provided on the edge of the mating end surface of the lower shell body 2, and the positioning groove 25 has two left and right grooves. A part of the left positioning groove 25 is located on the upper end surface of the left side wall of the lower shell body 2, and a part of it is located on the upper end surface of the rear side wall of the lower shell body 2. A part of the right positioning groove 25 is located on the upper end surface of the right side wall of the lower shell body 2, and a part of it is located on the upper end surface of the rear side wall of the lower shell body 2. A positioning protrusion 15 is provided on the edge of the mating end surface of the upper shell body 1. The positioning protrusion 15 corresponds to the positioning groove 25 up and down, so that the positioning protrusion 15 extends into the positioning groove 25 when the upper shell body 1 and the lower shell body 2 are buckled together to play a positioning role.

[0128] A plate-like protrusion is provided on the front side wall of the main body of the lower shell 2. The plate-like protrusion is arranged near the front side edge of the front side wall of the lower shell 2, and protrudes upward from the upper end surface of the front side wall of the lower shell 2. A plug hole 24 is provided on the plate-like protrusion, and the plug hole 24 is a front and rear through hole. The left and right outer side walls of the protrusion of the lower shell 2 are respectively provided with a locking protrusion 27, and the locking protrusion 27 is a wedge-shaped protrusion. An avoidance recess is provided on the front side surface of the front side wall of the main body of the upper shell 1. An insertion protrusion 14 is provided at the lower edge of the avoidance recess. The insertion protrusion 14 protrudes forward and extends. The left and right side walls of the protrusion of the upper shell 1 are respectively provided with protrusions, and the protrusions protrude downward from the lower end surface of the protrusion of the upper shell 1. The two protrusions are respectively provided with a locking hole 17, and the locking hole 17 is a square hole. The plug hole 24 of the lower shell 2 is for the insertion of the insertion protrusion 14 of the upper shell 1, and the locking protrusion 27 of the lower shell 2 is engaged with the locking hole 17 of the upper shell 1.

[0129] During assembly, each contact piece is correspondingly installed on the front split body 51 and the rear split body 52, and the front split body 51 and the rear split body 52 are fixed together by a strong installation structure. The insulator 5 is clamped onto the lower shell body 2, and the lower end of the insulator 5 is exposed from the avoidance opening 21, and the lower wire clamping rubber block is installed in the rubber block mounting groove; the insulating partition 300 and the elastic sheet 13 are fixed on the inner wall of the upper shell body 1, and the upper wire clamping rubber block 62 and the sealing ring 61 of the upper sealing member 6 are correspondingly installed in the upper rubber block mounting groove section 122 and the sealing ring mounting groove 16. When the upper shell body 1 and the lower shell body 2 are matched, the insertion protrusion 14 at the front end of the upper shell body 1 is inserted into the insertion hole 24 at the front end of the lower shell body 2, and then the fixing hole 17 at the rear end of the upper shell body 1 is clamped with the fixing protrusion 27 at the rear end of the lower shell body 2. At the same time, the positioning protrusion 15 on the lower side edge of the upper shell body 1 extends into the positioning groove 25 on the upper side edge of the lower shell body 2, so as to realize the positioning, clamping and fixing of the upper shell body 1 and the lower shell body 2.

[0130] When making the wires, the cable is stripped and shielded outside the plug, the upper shell 1 of the plug is opened, and an upward opening is formed on the upper side of the lower shell 2. The wiring terminals of the contacts are exposed from the opening formed by opening the upper shell 1, and the ends of the cables are placed above the insulator 5. The core wires of the cable are respectively welded and connected to the contacts. The signal transmission wires of the cable are clamped in the support groove 231 of the support column 23. The upper shell 1 and the lower shell 2 are buckled together, and the upper wire clamping rubber block and the lower wire clamping rubber block clamp the cable to achieve a seal with the cable tail at the threading hole 4. At the same time, the upper shell 1 and the lower shell 2 compress the sealing ring and the wire clamping rubber block to achieve a seal between the upper shell 1 and the lower shell 2 to prevent external liquid from entering the inside of the plug. The cable is locked by the bite protrusion on the threading groove to achieve tensile resistance. The upper shell 1 and the lower shell 2 are fixed by snapping to prevent force from opening.

[0131] In this way, by opening the upper shell 1, the insulator 5 can be automatically assembled from top to bottom and clamped onto the lower shell 2. It can be pre-installed in advance by automated equipment. The lower shell 2, insulator 5, and contact can be pre-installed at the open position. The contact welding points on the insulator 5 are completely exposed. After the cable is threaded, it can be easily wired with the contact, avoiding the cable passing out and returning at the avoidance port 21 in the prior art, greatly reducing the difficulty and complexity of wire assembly, and improving the efficiency of wire assembly. At the same time, the insulator 5 is set in a split manner. After the automated equipment wires the contact on a single insulator split, repeating the same operation can complete the automatic wiring of the contact on multiple insulator splits without adjusting the automated equipment; the front side insulator split can cover the contact on the rear side insulator split, which can increase the creepage distance and prevent breakdown.

[0132] By dividing the shell into an upper shell and a lower shell, and the sealing structure into an upper wire clamping rubber block, a sealing ring and a lower wire clamping rubber block, and fully opening the connector, wiring and shielding can be easily achieved, and automated wire cutting, wire stripping, automated welding, automated assembly, etc. can be achieved, which greatly improves the level of automated wiring and reduces labor costs.

[0133] Embodiment 2 of the connector of the present invention:

[0134] The difference between this embodiment and embodiment 1 is that the upper shell in embodiment 1 is a fully open structure, that is, it can be opened even at the threading hole position, while in this embodiment, Fig.12 As shown, the upper shell 401 is a semi-open structure, that is, the upper shell does not have a portion for enclosing a threading hole, and the threading hole is integrally formed on the lower shell 402. The sealing member between the upper shell and the lower shell is an annular sealing ring 403.

[0135] The mating surfaces of the upper shell 401 and the lower shell 402 are inclined surfaces, extending downward in an inclined direction away from the threading hole. A downwardly extending positioning column 405 is provided at the rear end of the upper shell 401, and a positioning hole 406 is provided at a position corresponding to the positioning column 405 on the mating end surface of the lower shell 402. The positioning column 405 is provided with an internal thread, and the positioning hole 406 is a stepped through hole, having an upper part with a larger aperture and a lower part with a smaller aperture. The upper part is for the positioning column 405 to be inserted, and the lower part is used to form a screw through hole, so that the screw 404 can be inserted into the positioning hole from bottom to top and be threadedly connected with the positioning 405 column.

[0136] When making the wires, the upper shell is in an open state, and the cable passes through the threading hole to reach the upper space of the lower shell. The wire stripping and shielding are carried out, and the core wires are crimped with the power contact and the signal contact respectively. Then, the crimped contacts are installed into the insulator and fixed by the clamping structure of the contacts. After the cable is made, the tail of the cable and the plug shell are sealed and locked at the threading position through the tail sealing assembly of the plug. The tail sealing assembly includes a locking wire nut, a clamping ring, and a rubber ring. The rubber ring ensures the seal between the cable and the shell to prevent external liquid from entering the plug. The locking wire nut cooperates with the clamping ring to lock the cable to play a tensile role. Then the annular sealing ring is installed in the ring groove of the lower shell. The upper shell is locked to the lower shell by screws. The annular sealing ring is located between the upper shell and the lower shell to ensure sealing. At this point, the entire wire making is completed.

[0137] By opening the back of the plug, wiring and shielding can be easily achieved. At the same time, the insulator can be installed in the open position through a simple design, which reduces costs and ensures reliable assembly.

[0138] Embodiment 3 of the connector of the present invention:

[0139] The difference between this embodiment and embodiment 1 is that, in embodiment 1, there are two rows of contact members, while in this embodiment, there are three rows of contact members. In other embodiments, the contact members may also be arranged in one row or more than four rows.

[0140] Embodiment 4 of the connector of the present invention:

[0141] The difference between this embodiment and the first embodiment is that in the first embodiment, both rows of contacts have power contacts, while in the present embodiment, only one row of the two rows of contacts has power contacts.

[0142] Embodiment 5 of the connector of the present invention:

[0143] The difference between this embodiment and embodiment 1 is that the connection terminals of the front row of contacts in embodiment 1 are higher than the connection terminals of the rear row of contacts. In this embodiment, the connection terminals of the two rows of contacts are at the same height and the two rows of contacts are staggered in the direction away from the threading holes.

[0144] Embodiment 6 of the connector of the present invention:

[0145] The difference between this embodiment and embodiment 1 is that the insulator in embodiment 1 includes a front split body and a rear split body which are arranged separately. However, in this embodiment, the insulator is an integrated structure.

[0146] Embodiment 7 of the connector of the present invention:

[0147] The difference between this embodiment and embodiment 1 is that in embodiment 1, the front body is provided with an extension portion that covers the contact mounting hole of the rear body, while in this embodiment, the front body is not provided with an extension portion, and the contact mounting hole on the rear body is exposed in the inner cavity of the shell.

[0148] Embodiment 8 of the connector of the present invention:

[0149] The difference between this embodiment and embodiment 1 is that in embodiment 1, the upper sub-body and the lower sub-body are fixed by a strong mounting structure, while in this embodiment, the upper sub-body and the lower sub-body are fixedly connected by screws.

[0150] Embodiment 9 of the connector of the present invention:

[0151] The difference between this embodiment and the first embodiment is that in the first embodiment the support surface is formed by the upper surface of the support boss, while in this embodiment the support surface is directly formed by the upper plane of the insulating body.

[0152] Embodiment 10 of the connector of the present invention:

[0153] The difference between this embodiment and the first embodiment is that in the first embodiment, the contact piece is connected to the cable by welding, while in this embodiment, the contact piece is crimped to the cable.

[0154] Embodiment 11 of the connector of the present invention:

[0155] The difference between this embodiment and the first embodiment is that in the first embodiment the insulator is mounted on the lower shell by snap-fitting, while in this embodiment the insulator is fixedly connected to the lower shell by screws.

[0156] Embodiment 12 of the connector of the present invention:

[0157] The difference between this embodiment and the first embodiment is that the contact members in the first embodiment include a power contact member, a signal contact member, and a brake contact member, while in this embodiment, all the contact members are power contacts.

[0158] Embodiment 13 of the connector of the present invention:

[0159] The difference between this embodiment and embodiment 1 is that the shielding contact structure in embodiment 1 is formed by elastic sheets and support grooves, while in this embodiment, a pressing block is provided on the inner wall of the upper shell, and the shielding contact structure is formed by the pressing block and the support grooves.

[0160] Embodiment 14 of the connector of the present invention:

[0161] The difference between this embodiment and the first embodiment is that the sealing ring and the upper clamping rubber block are integrally formed in the first embodiment, while in the present embodiment, the sealing ring and the lower clamping rubber block are integrally formed, and the sealing ring and the lower clamping rubber block are installed on the lower housing together.

[0162] Embodiment 15 of the connector of the present invention:

[0163] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the upper shell is provided with a positioning protrusion and the lower shell is provided with a positioning groove, while in this embodiment, the lower shell is provided with a positioning groove and the upper shell is provided with a positioning protrusion.

[0164] Embodiment 16 of the connector of the present invention:

[0165] The difference between this embodiment and embodiment 1 is that in embodiment 1, ribs are provided on the upper shell to fix the insulating partition, while in this embodiment, no ribs are provided on the upper shell, no insulating partition is provided between the upper shell and the contact piece, there is a large distance between the terminal of the contact piece and the inner wall of the upper shell, and insulation is only performed by air.

[0166] Embodiment 17 of the connector of the present invention:

[0167] The difference between this embodiment and embodiment 1 is that the insulating partition in embodiment 1 has two vertical plate parts and a vertical partition part separating the power contact and the signal contact, while in this embodiment, only the vertical partition part is provided on the insulating partition. In other embodiments, the vertical partition part may not be provided.

[0168] Embodiment of the connector assembly of the present invention:

[0169] The connector assembly includes a connector and a cable connected to the connector. The connector in this embodiment has the same structure as the connector in any of the above embodiments 1-17 and will not be described again here.

[0170] 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, comprising a housing, an insulator (5) fixed in the housing, a contact piece mounted on the insulator (5), a threading hole (4) for allowing a cable to pass through the housing and a relief opening (21) for allowing the insulator (5) to be exposed from the housing inner cavity, the threading hole (4) and the relief opening (21) being oriented vertically, and characterized in that: The shell comprises an upper shell (401) and a lower shell (402), the avoidance opening (21) is arranged on the lower shell (402), the threading hole (4) is arranged on the lower shell (402) or the upper shell (401) and the lower shell (402) are buckled together to form the threading hole (4), the insulator (5) is fixedly mounted on the lower shell (402), the contact has a terminal exposed in the inner cavity of the shell, the upper shell (401) and the lower shell (402) are sealed and buckled together, the upper shell and the lower shell are snap-fitted and fixed, and when the upper shell (401) is opened, the insulator (5) and the terminal of the contact are exposed, the contact is arranged in rows and there are more than two rows, at least two adjacent rows of contact include power contacts (8), the rows of contact are arranged at intervals in the extension direction of the threading hole (4), the arrangement direction of the contact in each row is perpendicular to the extension direction of the threading hole (4), and the terminal of the contact in adjacent rows is arranged from low to high in a direction away from the threading hole (4). The insulating body (5) is arranged in a stepped manner from top to bottom. The insulating body (5) includes insulating bodies that are separately arranged. The number of insulating bodies is equal to the number of rows of contact pieces. Each insulating body is correspondingly provided with a row of contact pieces. The insulating bodies are detachably connected. Among the two adjacent insulating bodies, the insulating body far from the threading hole (4) is provided with an extension portion (513) extending toward a side close to the threading hole (4). The insulating body close to the threading hole (4) is located below the extension portion (513) and is partially covered by the extension portion (513). The insulating body far from the threading hole (4) is provided with a supporting surface that upwardly supports the wiring terminal of the corresponding contact piece. At least part of the supporting surface is arranged on the extension portion (513). The wiring terminal of the contact piece on the insulating body close to the threading hole (4) extends toward a side close to the threading hole (4). The extension portion (513) covers a part of the contact piece installed on the insulating body close to the threading hole (4) and exposes the wiring terminal of the contact piece.

2. The connector according to claim 1, characterized in that: One of the adjacent insulating split bodies is provided with a strong mounting protrusion (521), and the other is provided with a strong mounting hole (511), and the strong mounting protrusion (521) and the strong mounting hole (511) form a strong mounting fit.

3. The connector according to claim 1, characterized in that: A support boss (512) for supporting a power conductor of the cable is provided on the extension portion (513) on one side of the support surface close to the threading hole (4), and a spacing groove (515) is provided between the support boss (512) and the support surface.

4. The connector according to any one of claims 1 to 3, characterized in that: The connection terminal of the contact piece is a horizontal extension section integrally connected to the contact piece, and the upper side surface of the horizontal extension section constitutes a welding connection surface (200) for welding connection with the cable.

5. The connector according to any one of claims 1 to 3, characterized in that: The avoidance opening (21) is directly opposite to the upper opening (210) of the lower shell (402) for interlocking with the upper shell (401); the upper opening (210) of the lower shell (402) is larger than the avoidance opening (21); the lower shell (402) is provided with an insulator stop surface (211) for stopping the insulator (5) in a downward direction; the insulator (5) is mounted on the lower shell (402) from top to bottom.

6. The connector according to claim 5, characterized in that: The insulator (5) is provided with a buckle (53), and a corresponding slot (29) is provided on the lower shell (402) to cooperate with the buckle (53). The insulator (5) is positioned and fixed on the lower shell (402) through the engagement of the buckle (53) with the slot (29) and the blocking of the insulator blocking surface (211).

7. The connector according to any one of claims 1 to 3, characterized in that: The contact piece comprises a signal contact piece (9) which is used to connect with a signal transmission wire of a cable. The housing is a metal housing, and a shielding contact structure is provided on the housing which is used to contact with a shielding layer of the signal transmission wire of the cable.

8. The connector according to claim 7, characterized in that: The shielding contact structure comprises a pressing portion arranged on the upper shell (401) and a supporting portion arranged on the lower shell (402), so that when the upper shell (401) and the lower shell (402) are buckled, the pressing portion and the supporting portion clamp the shielding layer of the signal transmission wire of the cable.

9. The connector according to claim 8, characterized in that: The pressing portion is an elastic pressing portion, and the supporting portion is a supporting groove (231).

10. The connector according to any one of claims 1 to 3, characterized in that: The threading hole (4) is surrounded by threading grooves respectively provided on the upper shell (401) and the lower shell (402), and a wire clamping rubber block is respectively provided in the threading groove. The two wire clamping rubber blocks are matched up and down to achieve sealing with the cable. A sealing ring (61) extending along the matching edge is also provided between the matching surfaces of the upper shell (401) and the lower shell (402).

11. The connector according to any one of claims 1 to 3, characterized in that: A positioning protrusion (15) is provided on one of the mating surfaces of the upper shell (401) and the lower shell (402), and a positioning groove (25) is provided on the other, and the positioning protrusion (15) and the positioning groove (25) cooperate to achieve positioning of the upper shell (401) and the lower shell (402) when they are buckled together.

12. The connector according to any one of claims 1 to 3, characterized in that: The shell is a metal shell, and an insulating partition (300) is also provided on the inner side of the upper shell (401), and the insulating partition (300) covers the upper side of the contact piece.

13. The connector according to claim 12, characterized in that: There are a plurality of contact pieces arranged in rows, each row of contact pieces comprising a power contact piece (8) and a signal contact piece (9), the power contact pieces (8) and the signal contact pieces (9) in each row being arranged at intervals in a direction perpendicular to the axis of the threading hole (4), the insulating partition (300) comprising a horizontal partition portion (303) and a vertical partition portion (301), the horizontal partition portion (303) covering the top of the contact piece, and the vertical partition portion (301) blocking between the power contact piece (8) and the signal contact piece (9).

14. The connector according to any one of claims 1 to 3, characterized in that: The threading hole (4) is arranged on the lower shell (402), and the mating surfaces of the upper shell (401) and the lower shell (402) are inclined surfaces, extending obliquely downward in a direction away from the threading hole (4).

15. The connector according to claim 14, characterized in that: A positioning column (405) extending downward is provided on the side wall of the upper shell (401) near one end of the threading hole (4), and a positioning hole (406) is provided on the lower shell (402) at a position corresponding to the positioning column (405). The positioning column (405) is provided with an internal thread. The positioning hole (406) is a stepped through hole, and the larger hole diameter portion is used for inserting the positioning column (405) and the smaller hole diameter portion is used to form a through hole for the screw (404), so that the upper shell (401) and the lower shell (402) are locked and connected by the screw (404).

16. A connector assembly, comprising a connector and a cable connected to the connector, characterized in that: The connector is the connector described in any one of claims 1 to 15.

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