Connector with high pull-out force and wire harness assembly

Abstract

The invention relates to the technical field of wire harness assemblies, in particular to a high-pull-out-force connector and a wire harness assembly, and the connector comprises a female end base and a shell. The shell is provided with an accommodating cavity; the female end base is arranged in the accommodating cavity; the female end base is provided with a conductive sleeve; the top of the conductive sleeve is provided with a plugging port. A rotating seat is rotationally arranged on the female end base in a lifting manner; a valve plate is movably arranged on the rotating seat; a locking ring is arranged at the top of the accommodating cavity; a connecting rod is arranged between the locking ring and the rotating seat; a driving groove is formed in the top of the shell; a cylindrical lock catch is rotationally arranged in the driving groove; a locking groove is formed in the cylindrical lock catch; and the locking ring drives the cylindrical lock catch to rotate. In the plugging process, locking and electrical connection are automatically completed through interaction of the male end and the female end, rapid separation can be achieved only by pressing the unlocking cover during unlocking, meanwhile, due to the automatic telescopic function of the conductive terminal and the sealing function of the conductive sleeve, it is effectively avoided that an operator mistakenly touches a live part, water and dust can be prevented, and the service life of the electric connector is prolonged. And the safety in the use process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness assemblies, and in particular to a connector with high pull-out force and a wire harness assembly. Background Art

[0002] Existing high-pull-out force connectors mainly adopt two structures: snap-on connection and push-push connection. The snap-on connection structure is simple and achieves high pull-out force and firm connection. However, when separating the male and female ends, the snap needs to produce a large elastic deformation, which makes separation difficult or easy to damage during operation. The push-push structure, as an improved solution to the snap-on structure, significantly improves the convenience of plugging and unplugging with its unique locking method. However, its unlocking mechanism relies on the relative sliding displacement of the male and female ends. This feature makes it difficult to arrange it reasonably when equipped with protective structures such as dust covers due to the obstruction of the protective structure. Therefore, it is necessary to design a push-pus structure that can be linked to automatically open the protective structure before the plugging and unplugging operation, taking into account both manufacturing convenience and protective performance. Summary of the Invention

[0003] The object of the present invention is to provide a connector and a wiring harness assembly with high pull-out force in view of the above-mentioned deficiencies in the prior art.

[0004] The objectives of the present invention are achieved through the following technical solutions: A high-pullout force connector, comprising a female end base and a housing; the housing is provided with a receiving cavity; the female end base is disposed within the receiving cavity; the female end base is provided with a conductive sleeve; the top of the conductive sleeve is provided with an insertion port; the female end base is provided with a rotating seat for lifting and rotating; the rotating seat is movably provided with a valve plate for shielding the insertion port; A locking ring is provided on the top of the accommodating cavity; a connecting rod is provided between the locking ring and the rotating seat; a driving groove is provided on the top of the shell; a cylindrical lock buckle is provided for rotation in the driving groove; a locking groove is provided on the cylindrical lock buckle; and the locking ring drives the cylindrical lock buckle to rotate.

[0005] The present invention is further configured such that a driving spiral groove is provided on the side wall of the locking ring; the cylindrical lock buckle is sleeved outside the locking ring; the cylindrical lock buckle is provided with a driving pin; and the driving pin is movably provided in the driving spiral groove.

[0006] The present invention is further configured such that the valve disc is movably arranged on the rotating seat along the diameter direction of the rotating seat; the female end base is provided with an involute groove; the valve disc is provided with a limit pin; and the limit pin is movably arranged on the involute groove.

[0007] The present invention is further configured such that a first spring is provided between the bottom of the rotating seat and the female end base.

[0008] The present invention is further configured such that the inner wall of the female end base is provided with a linkage groove; the outer wall of the rotating seat is telescopically provided with a floating pin; and the floating pin is movably arranged in the linkage groove.

[0009] The present invention is further configured such that the linkage groove includes a first spiral groove, a second spiral groove, a first vertical groove, and a second vertical groove; the top of the first vertical groove is connected to the top of the first spiral groove; the bottom of the first vertical groove is connected to the top of the second spiral groove; the top of the second vertical groove is connected to the bottom of the first spiral groove; and the bottom of the second vertical groove is connected to the bottom of the second spiral groove. The top of the first vertical groove is provided with a first inclined surface and a first blocking boss; the bottom of the first spiral groove is provided with a second inclined surface and a second blocking boss; the bottom of the second vertical groove is provided with a third inclined surface and a third blocking boss.

[0010] A wiring harness assembly includes a male terminal base and a connector with high pull-out force; The male end base is provided with a accommodating cavity; the accommodating cavity is telescopically provided with a conductive terminal; a sealing ring is provided between the conductive terminal and the accommodating cavity; a socket is provided in the accommodating cavity for lifting and lowering movement; the conductive terminal is connected to the socket; a driving seat for driving the socket to lift and lower is movably provided in the accommodating cavity; the driving seat is hinged with a fixed rod body; the bottom of the fixed rod body is telescopically provided with a movable rod body; the bottom of the fixed rod body is provided with a locking block that cooperates with the locking groove.

[0011] The present invention is further configured such that the drive seat is horizontally slidably disposed in the accommodating cavity; a first drive inclined surface is disposed at one end of the drive seat; a second drive inclined surface is disposed at the top of the socket to cooperate with the first drive inclined surface; the top of the fixed rod is hingedly connected to the other end of the drive seat; a second spring is disposed between the bottom of the socket and the bottom of the accommodating cavity; A third spring is provided between the fixed rod body and the movable rod body.

[0012] The present invention is further configured such that a protective cover is provided at the bottom of the conductive terminal.

[0013] The present invention is further configured such that an unlocking cover is provided for the lifting movement of the top of the male end base; a fourth spring is provided between the unlocking cover and the male end base; and the unlocking cover is connected to an unlocking rod for abutting against the rotating seat.

[0014] The beneficial effects of the present invention are as follows: the present invention is simple and intuitive to use and operate; the locking and electrical connection are automatically completed through the interaction between the male and female ends during the plugging process; when unlocking, quick separation can be achieved by simply pressing the unlocking cover; at the same time, the automatic telescopic function of the conductive terminal and the sealing function of the conductive sleeve effectively prevent the operator from accidentally touching the live parts; and the present invention is waterproof and dustproof, thereby improving safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The invention is further described with reference to the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the invention. A person skilled in the art can obtain other drawings based on the following drawings without making any creative effort.

[0016] Figure 1 It is a schematic structural diagram of the wiring harness assembly of the present invention; Figure 2 is a cross-sectional view of a wiring harness assembly of the present invention; Figure 3 2. It is a schematic structural diagram of a high pull-out force connector of the present invention; Figure 4 is a cross-sectional view of a high pull-out force connector of the present invention; Figure 5 This is a schematic structural diagram of the high pull-out force connector of the present invention after the housing is hidden; Figure 6 It is a structural schematic diagram of the rotating seat of the present invention; Figure 7 is a cross-sectional view of the female end base of the present invention; Figure 8 is a cross-sectional view of the female end base of the present invention from another perspective; Figure 9 It is a structural diagram of the male end base of the present invention; Figure 10 is a cross-sectional view of the male end base of the present invention; Wherein: 1. Female end base; 11. Conductive sleeve; 12. Plug interface; 13. Involute groove; 2. Housing; 21. Accommodating cavity; 22. Drive groove; 3. Rotating seat; 31. Valve plate; 32. Limit pin; 33. Connecting rod; 34. First spring; 35. Floating pin; 41. Locking ring; 42. Drive spiral groove; 43. Cylindrical lock; 44. Locking groove; 45. Drive pin; 51. First spiral groove; 52. Second spiral groove; 53. First vertical groove; 54. Second vertical groove; 61. First inclined surface; 6 2. First blocking boss; 63. Second inclined surface; 64. Second blocking boss; 65. Third inclined surface; 66. Third blocking boss; 7. Male terminal base; 71. Accommodating cavity; 72. Conductive terminal; 73. Sealing ring; 74. Protective cover; 8. Connecting seat; 81. Second driving inclined surface; 82. Second spring; 9. Driving seat; 91. First driving inclined surface; 92. Fixed rod body; 93. Movable rod body; 94. Third spring; 95. Locking block; 96. Unlocking cover; 97. Fourth spring; 98. Unlocking rod. DETAILED DESCRIPTION

[0017] The present invention is further described with reference to the following examples.

[0018] Depend on Figures 1 to 10It can be seen that the high-pull-out force connector described in this embodiment includes a female base 1 and a shell 2; the shell 2 is provided with a accommodating cavity 21; the female base 1 is arranged in the accommodating cavity 21; the female base 1 is provided with a conductive sleeve 11; the top of the conductive sleeve 11 is provided with a plug interface 12; the female base 1 is provided with a rotating seat 3 for lifting and rotating; the rotating seat 3 is movably provided with a valve plate 31 for shielding the plug interface 12; the top of the accommodating cavity 21 is provided with a locking ring 41; a connecting rod 33 is provided between the locking ring 41 and the rotating seat 3; the top of the shell 2 is provided with a driving groove 22; a cylindrical lock buckle 43 is provided for rotating in the driving groove 22; the cylindrical lock buckle 43 is provided with a locking groove 44; the locking ring 41 drives the cylindrical lock buckle 43 to rotate. The male end base 7 is provided with a accommodating cavity 71; the accommodating cavity 71 is telescopically provided with a conductive terminal 72; a sealing ring 73 is provided between the conductive terminal 72 and the accommodating cavity 71; a socket 8 is provided in the accommodating cavity 71 for lifting and lowering; the conductive terminal 72 is connected to the socket 8; a driving seat 9 for driving the socket 8 to lift and lower is movably provided in the accommodating cavity 71; the driving seat 9 is hinged with a fixed rod body 92; the bottom of the fixed rod body 92 is telescopically provided with a movable rod body 93; the bottom of the fixed rod body 92 is provided with a locking block 95 that cooperates with the locking groove 44.

[0019] Specifically, in the high-pullout force connector described in this embodiment, when idle, the valve plate 31 shields the plug-in port 12 of the conductive sleeve 11 to prevent dust and moisture from entering the conductive sleeve 11; at the same time, the conductive terminal 72 is accommodated in the accommodating cavity 71 to prevent dust and moisture from damaging the conductive terminal 72.

[0020] When the female base 1 and the male base 7 are plugged in, the locking block 95 at the bottom of the movable rod body 93 is first inserted into the locking groove 44 of the cylindrical lock buckle 43, and then the male base 7 pushes the rotating base 3 to move downward. The rotating base 3 rotates at the same time during the downward movement, thereby driving the locking ring 41 to rotate synchronously through the connecting rod 33. The valve plate 31 opens while the rotating base 3 rotates. In addition, when the locking ring 41 rotates, it drives the cylindrical lock buckle 43 and the locking block 95 to rotate. The locking block 95 drives the driving base 9 to move through the movable rod body 93 and the fixed rod body 92. During the movement of the driving base 9, it drives the plug seat 8 and the conductive terminal 72 to move downward, so that the conductive terminal 72 is inserted into the plug interface 12 of the conductive sleeve 11, completing the plug-in of the female base 1 and the male base 7.

[0021] In the high-pullout-force connector described in this embodiment, the sidewall of the locking ring 41 is provided with a drive spiral groove 42; the cylindrical lock catch 43 is sleeved on the outside of the locking ring 41; the cylindrical lock catch 43 is provided with a drive pin 45; and the drive pin 45 is movably mounted in the drive spiral groove 42. This arrangement allows the locking ring 41 to rotate, and the engagement of the drive spiral groove 42 and the drive pin 45 drives the cylindrical lock catch 43 to rotate, thereby causing the locking block 95 to drive the drive seat 9 to move via the movable rod 93 and the fixed rod 92.

[0022] In this embodiment of the high-pullout-force connector, the valve disc 31 is movably mounted on the rotating base 3 along its diameter; the female end base 1 is provided with an involute groove 13; the valve disc 31 is provided with a stop pin 32; and the stop pin 32 is movably mounted on the involute groove 13. This arrangement allows the valve disc 31 to move along its diameter during rotation, through the cooperation of the involute groove 13 and the stop pin 32, thereby shielding or opening the insertion port 12 of the conductive sleeve 11.

[0023] In the high-pullout-force connector of this embodiment, a first spring 34 is provided between the bottom of the rotating seat 3 and the female end base 1. The above arrangement facilitates the resetting of the rotating seat 3.

[0024] In the present embodiment, a high-pullout-force connector is provided with a linkage groove on the inner wall of the female end base 1; a floating pin 35 is provided on the outer wall of the rotating seat 3 for telescopic movement; and the floating pin 35 is movably provided in the linkage groove. In the present embodiment, a high-pullout-force connector is provided with a linkage groove, comprising a first spiral groove 51, a second spiral groove 52, a first vertical groove 53, and a second vertical groove 54; the top of the first vertical groove 53 is connected to the top of the first spiral groove 51; the bottom of the first vertical groove 53 is connected to the top of the second spiral groove 52; the top of the second vertical groove 54 is connected to the bottom of the first spiral groove 51; the bottom of the second vertical groove 54 is connected to the bottom of the second spiral groove 52; the top of the first vertical groove 53 is provided with a first inclined surface 61 and a first blocking boss 62; the bottom of the first spiral groove 51 is provided with a second inclined surface 63 and a second blocking boss 64; the bottom of the second vertical groove 54 is provided with a third inclined surface 65 and a third blocking boss 66.

[0025] A wiring harness assembly described in this embodiment includes a male end base 7 and a connector with high pull-out force; the male end base 7 is provided with a accommodating cavity 71; the accommodating cavity 71 is telescopically provided with a conductive terminal 72; a sealing ring 73 is provided between the conductive terminal 72 and the accommodating cavity 71; a socket 8 is provided in the accommodating cavity 71 for lifting and lowering; the conductive terminal 72 is connected to the socket 8; a driving seat 9 for driving the socket 8 to lift and lower is movably provided in the accommodating cavity 71; the driving seat 9 is hinged with a fixed rod body 92; the bottom of the fixed rod body 92 is telescopically provided with a movable rod body 93; the bottom of the fixed rod body 92 is provided with a locking block 95 that cooperates with the locking groove 44. In the wiring harness assembly described in this embodiment, the drive seat 9 is horizontally slidably arranged in the accommodating cavity 71; a first drive bevel 91 is provided at one end of the drive seat 9; a second drive bevel 81 that cooperates with the first drive bevel 91 is provided at the top of the plug seat 8; the top of the fixed rod 92 is hinged to the other end of the drive seat 9; a second spring 82 is provided between the bottom of the plug seat 8 and the bottom of the accommodating cavity 71; a third spring 94 is provided between the fixed rod 92 and the movable rod 93. In the wiring harness assembly described in this embodiment, an unlocking cover 96 is provided at the top of the male end base 7 for lifting and lowering; a fourth spring 97 is provided between the unlocking cover 96 and the male end base 7; and the unlocking cover 96 is connected to an unlocking rod 98 for abutting against the rotating seat 3.

[0026] Specifically, when the wiring harness assembly described in this embodiment is idle, the valve plate 31 covers the plug interface 12 of the conductive sleeve 11 to prevent dust and water vapor from entering the conductive sleeve 11; at the same time, the conductive terminal 72 is accommodated in the accommodating cavity 71 to prevent dust and water vapor from damaging the conductive terminal 72; in addition, under the action of the first spring 34, the floating pin 35 is located at the top of the first spiral groove 51; in addition, under the action of the second spring 82, the socket 8 is located at the top of the accommodating cavity 71, so that the conductive terminal 72 is accommodated in the accommodating cavity 71.

[0027] When the female base 1 and the male base 7 are plugged into each other, the locking block 95 at the bottom of the movable rod body 93 is first inserted into the locking groove 44 of the cylindrical lock buckle 43, and then the male base 7 pushes the rotating seat 3 to move downward. At this time, the floating pin 35 moves along the first spiral groove 51, so that the rotating seat 3 rotates at the same time during the downward movement. Under the cooperation of the involute groove 13 and the limit pin 32, the rotating seat 3 rotates and the valve plate 31 opens at the same time; in addition, the rotating seat 3 drives the locking ring 41 to rotate synchronously through the connecting rod 33. When the locking ring 41 rotates, the cylindrical lock buckle 43 is driven to rotate through the cooperation of the spiral groove and the driving pin 45. Since the locking groove 44 is clamped with the locking block 95, during the rotation of the cylindrical lock 43, the locking block 95 drives the drive seat 9 to move inward through the movable rod body 93 and the fixed rod body 92, and with the cooperation of the first driving inclined surface 91 and the second driving inclined surface 81, drives the connector 8 and the conductive terminal 72 to move downward, so that the conductive terminal 72 is inserted into the plug interface 12 of the conductive sleeve 11, until the floating pin 35 moves to the top of the second vertical groove 54. Under the action of the second blocking boss 64 and the first spring 34, the floating pin 35 is clamped at the top of the second vertical groove 54, thereby completing the installation of the female end base 1 and the male end base 7.

[0028] When it is necessary to separate the female end base 1 from the male end base 7, the unlocking cover 96 is pressed downward, and the unlocking cover 96 pushes the rotating base 3 downward through the unlocking rod 98. At this time, the floating pin 35 moves to the bottom of the second vertical groove 54. After releasing the unlocking cover 96, under the action of the first spring 34, the floating pin 35 moves upward along the second spiral groove 52, thereby causing the rotating base 3 to rotate in the opposite direction until the floating pin 35 moves to the top of the first vertical groove 53. Then, each component is reset, thereby completing the separation of the female end base 1 from the male end base 7.

[0029] In the wiring harness assembly of this embodiment, a protective cover 74 is provided at the bottom of the conductive terminal 72. This arrangement can prevent moisture from entering the accommodating cavity 71 when the conductive terminal 72 is accommodated in the accommodating cavity 71.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A connector with high pull-out force, characterized in that: The invention comprises a female end base (1) and a shell (2); the shell (2) is provided with a receiving cavity (21); the female end base (1) is arranged in the receiving cavity (21); the female end base (1) is provided with a conductive sleeve (11); the top of the conductive sleeve (11) is provided with an insertion port (12); the female end base (1) is provided with a rotating seat (3) for lifting and rotating; the rotating seat (3) is movably provided with a valve plate (31) for shielding the insertion port (12); A locking ring (41) is provided at the top of the accommodating cavity (21); a connecting rod (33) is provided between the locking ring (41) and the rotating seat (3); a driving groove (22) is provided at the top of the housing (2); a cylindrical lock buckle (43) is provided for rotation in the driving groove (22); a locking groove (44) is provided in the cylindrical lock buckle (43); and the locking ring (41) drives the cylindrical lock buckle (43) to rotate.

2. The high pull-out force connector according to claim 1, characterized in that: The side wall of the locking ring (41) is provided with a driving spiral groove (42); the cylindrical lock buckle (43) is sleeved outside the locking ring (41); the cylindrical lock buckle (43) is provided with a driving pin (45); the driving pin (45) is movably provided in the driving spiral groove (42).

3. The high pull-out force connector according to claim 1, characterized in that: The valve disc (31) is movably arranged on the rotating seat (3) along the diameter direction of the rotating seat (3); the female end base (1) is provided with an involute groove (13); the valve disc (31) is provided with a limit pin (32); the limit pin (32) is movably arranged in the involute groove (13).

4. The high pull-out force connector according to claim 1, characterized in that: A first spring (34) is provided between the bottom of the rotating seat (3) and the female end base (1).

5. The high pull-out force connector according to claim 1, characterized in that: The inner wall of the female end base (1) is provided with a linkage groove; the outer wall of the rotating seat (3) is telescopically provided with a floating pin (35); the floating pin (35) is movably arranged in the linkage groove.

6. The high pull-out force connector according to claim 5, characterized in that: The linkage groove comprises a first spiral groove (51), a second spiral groove (52), a first vertical groove (53) and a second vertical groove (54); the top of the first vertical groove (53) is communicated with the top of the first spiral groove (51); the bottom of the first vertical groove (53) is communicated with the top of the second spiral groove (52); the top of the second vertical groove (54) is communicated with the bottom of the first spiral groove (51); the bottom of the second vertical groove (54) is communicated with the bottom of the second spiral groove (52); The top of the first vertical groove (53) is provided with a first inclined surface (61) and a first blocking protrusion (62); the bottom of the first spiral groove (51) is provided with a second inclined surface (63) and a second blocking protrusion (64); the bottom of the second vertical groove (54) is provided with a third inclined surface (65) and a third blocking protrusion (66).

7. A wiring harness assembly, characterized in that: It comprises a male end base (7) and a high pull-out force connector according to any one of claims 1 to 6; The male end base (7) is provided with a housing cavity (71); the housing cavity (71) is provided with a conductive terminal (72) that can be telescopically moved; a sealing ring (73) is provided between the conductive terminal (72) and the housing cavity (71); a socket (8) is provided in the housing cavity (71) that can be lifted and lowered; the conductive terminal (72) is connected to the socket (8); a driving seat (9) for driving the socket (8) to be lifted and lowered is provided in the housing cavity (71); the driving seat (9) is hinged with a fixed rod (92); the bottom of the fixed rod (92) is provided with a movable rod (93) that can be telescopically moved; the bottom of the fixed rod (92) is provided with a locking block (95) that cooperates with the locking groove (44).

8. The wiring harness assembly according to claim 7, characterized in that: The driving seat (9) is horizontally slidably arranged in the accommodating cavity (71); a first driving inclined surface (91) is provided at one end of the driving seat (9); a second driving inclined surface (81) is provided at the top of the plug seat (8) to cooperate with the first driving inclined surface (91); the top of the fixing rod (92) is hinged to the other end of the driving seat (9); a second spring (82) is provided between the bottom of the plug seat (8) and the bottom of the accommodating cavity (71); A third spring (94) is provided between the fixed rod (92) and the movable rod (93).

9. The wiring harness assembly according to claim 7, characterized in that: A protective cover (74) is provided at the bottom of the conductive terminal (72).

10. The wiring harness assembly according to claim 7, characterized in that: The top of the male end base (7) is provided with an unlocking cover (96) for lifting movement; a fourth spring (97) is provided between the unlocking cover (96) and the male end base (7); and the unlocking cover (96) is connected to an unlocking rod (98) for abutting against the rotating seat (3).

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