Large-current connector assembly, wire end connector and board end connector

Abstract

The utility model discloses a heavy-current connector assembly, a wire end connector and a board end connector, which realize stable butt joint of two connectors without loosening. The wire end connector comprises a wire end base and two limiting rods; the end face of the wire end base is provided with an enclosing wall and a plurality of tubular insulating terminal seats, and each insulating terminal seat is internally provided with a wire end terminal; the inner wall of the enclosing wall is provided with at least one buckling groove, and a slot is defined between the enclosing wall and the insulating terminal seat. The limiting rods are movably arranged in the inserting grooves in a penetrating mode, and the tail end of at least one limiting rod is arranged to be a smooth face. The board end connector comprises a panel, a board end base and two buckles. The plate end base is arranged on one side of the panel, a plurality of terminal grooves are formed in the plate end base, plate end terminals are arranged in the terminal grooves, and the plate end terminals penetrate through the plate end base; the buckles are arranged on the two sides of the plate end base, each buckle comprises a clamping hook, and the clamping hooks are arranged in the direction away from the plate end base; the surface, facing the plate end base, of the buckle is a smooth surface.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, and specifically refers to a high-current connector assembly, wire-end connector, and board-end connector. Background Technology

[0002] A connector is a device that allows electronic products to interface with power supplies or other electronic products. It typically includes connecting terminals, wires, and a body formed by coating the connection between the connecting terminals and the wires.

[0003] Wire-end connectors and board-end connectors are typically used together and mated together. The stability of the connection between the two connectors is crucial; loosening can lead to power outages, network disruptions, and the loss or damage of production data. Mating methods relying solely on a tight fit are prone to loosening, especially with high-current connectors. Due to their large size and the thicker cables they are paired with, which may be bent during use, the connector connection is subjected to forces from various directions, eventually causing wobbling and loosening. Some connector designs use snap-fit ​​connections for relative fixation, but conventional snap-fit ​​connections have the drawback of being easy to connect but difficult to disconnect. After repeated insertions and removals, the snaps will loosen and lose function. Utility Model Content

[0004] The main purpose of this utility model is to provide a high-current connector assembly, a wire-end connector, and a board-end connector, to solve the problems existing in the prior art, and to achieve stable docking between two connectors without loosening.

[0005] To achieve the above objectives, one of the solutions of this utility model is:

[0006] A wire-end connector includes a wire-end base and two limiting rods; the end face of the wire-end base is provided with a wall and a plurality of tubular insulating terminal blocks, each insulating terminal block being provided with a wire-end terminal; the inner wall of the wall is provided with at least one snap-fit ​​groove, and a slot is defined between the wall and the insulating terminal blocks; the limiting rods are movably disposed in the slot, and the end of at least one limiting rod is provided with a smooth surface.

[0007] The rear end face of the wire end base is provided with a movable hole, which extends through the slot; the limiting rod is movably fitted within the movable hole.

[0008] Preferably, the wire end connector further includes a cable bundle and a wire end adhesive base; the wire end terminal includes a front cup-shaped groove and a rear cup-shaped groove; an annular elastic terminal is disposed in the front cup-shaped groove, and the front end of the front cup-shaped groove is provided with an extension portion extending radially to prevent the annular elastic terminal from falling forward out of the front cup-shaped groove; the cable bundle includes a plurality of cables, and the cables are electrically connected to the corresponding rear cup-shaped groove; the wire end adhesive base is fixed behind the wire end base and covers the connection interface between the cable bundle and the wire end terminal.

[0009] Preferably, a limiting ring is provided on the inner end circumference of the limiting rod; a spring is sleeved on the circumference of the limiting rod, and the two ends of the spring respectively abut against the limiting ring and the step provided in the movable hole; an anti-rotation block is provided on the circumference of the limiting ring, and an anti-rotation groove is provided on the side wall of the movable hole for the anti-rotation block to slide; a pull ring is connected between the outer ends of the two limiting rods, and a pull bar is connected to the pull ring.

[0010] Preferably, the end of the wire end seat is provided with a stop protrusion for the pull ring hook to be fastened.

[0011] The number of insulating terminal blocks is set to an odd number of three or more, and the enclosure is provided with a recessed wall portion, at least a portion of which is located between two adjacent insulating terminal blocks.

[0012] The second solution of this utility model is:

[0013] A board-end connector includes a faceplate, a board-end base, and two latches. The board-end base is disposed on one side of the faceplate and has a plurality of terminal slots therein, each terminal slot containing a board-end terminal, the board-end terminal passing through the board-end base. The latches are disposed on both sides of the board-end base, each latch including a hook, the hook being disposed in a direction away from the board-end base. The surface of the latch facing the board-end base is a smooth surface.

[0014] Both sides of the plate end base are provided with an inwardly recessed step portion, at least a portion of the buckle is located in the step portion on the corresponding side, and the front and rear ends of the buckle are respectively provided with a guide slope.

[0015] Preferably, the plate end base is provided with a groove portion, which is located between two adjacent terminal slots on the left and right sides, and the panel of the stepped portion and the groove portion are provided with mounting holes, and metal internal thread elements are provided in the mounting holes.

[0016] The third solution of this utility model is:

[0017] A high-current connector assembly includes a wire-end connector and a board-end connector; the wire-end connector and the board-end connector are plugged into each other, the latch hook is engaged in the latch groove, and the limiting rod restricts the latch so that it cannot be separated from the latch groove.

[0018] After adopting the above technical solution, the present invention has the following technical effects:

[0019] This utility model adopts the existing technology of using a snap-fit ​​connection to fix the wire-end connector and the board-end connector relatively, and innovatively designs two user-operable limiting rods on the wire-end connector. The limiting rods restrict the snap-fit ​​of the board-end connector, which can prevent loosening caused by its own elasticity or deformation due to external force, and ensure that the snap-fit ​​can be stably hooked in the snap-fit ​​groove of the wall to achieve a stable connection; the end of any one or both of the limiting rods is set as a smooth surface, which is defined as a surface without a hook-like structure. Attached Figure Description

[0020] Figure 1 This is a perspective view of the insertion state of a specific embodiment of the present utility model.

[0021] Figure 2 This is a perspective view of the separated state of a specific embodiment of the present invention.

[0022] Figure 3 This is a perspective view of the wire-end connector according to a specific embodiment of the present utility model.

[0023] Figure 4 This is a perspective view of the board-end connector according to a specific embodiment of the present utility model.

[0024] Figure 5 This is a cross-sectional view of the insertion state of a specific embodiment of the present utility model.

[0025] Figure 6 This is a cross-sectional view of the separated state of a specific embodiment of the present utility model.

[0026] Explanation of icon numbers:

[0027] 1-Wire connector; 11-Wire base; 111-Enclosure; 112-Insulated terminal block; 113-Snap-in slot; 114-Slot; 115-Moving hole; 116-Step; 117-Anti-rotation groove; 118-Concave wall; 12-Limiting rod; 121-Smooth surface; 122-Limiting ring; 123-Anti-rotation block; 13-Wire terminal; 131-Front cup-shaped groove; 1311-Extension; 132-Rear cup-shaped groove; 133-Annular elastic terminal; 14-Spring; 15-Pull ring; 16-Pull bar; 17-Cable harness; 171-Cable; 18-Wire end adhesive base; 181-Stop protrusion;

[0028] 2-Board connector; 21-Face panel; 22-Board base; 221-Terminal slot; 222-Stepped portion; 23-Snap-in; 231-Hook; 232-Smooth surface; 233-Guide bevel; 24-Board terminal; 25-Groove portion; 26-Mounting hole; 27-Metal internal thread element. Detailed Implementation

[0029] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0030] refer to Figure 1-6 As shown, this utility model discloses a high-current connector assembly, including a wire end connector 1 and a board end connector 2 that are mutually plugged into each other.

[0031] The wire connector 1 includes a wire base 11 and two limiting rods 12. The end face of the wire base 11 is provided with a surrounding wall 111 and several tubular insulating terminal blocks 112, each containing a wire terminal 13. The inner wall of the surrounding wall 111 has at least one snap-fit ​​groove 113, and a slot 114 is defined between the surrounding wall 111 and the insulating terminal blocks 112. The limiting rods 12 are movably disposed within the slot 114, and the end of at least one limiting rod 12 is a smooth surface 121. The snap-fit ​​groove 113 can be a shallow groove or a through hole.

[0032] The board-end connector 2 includes a face panel 21, a board-end base 22, and two latches 23. The board-end base 22 is disposed on one side of the face panel 21 and has a plurality of terminal slots 221 therein. Each terminal slot 221 is provided with a board-end terminal 24, which passes through the board-end base 22. The latches 23 are disposed on both sides of the board-end base 22. Each latch 23 includes a hook 231, which is positioned away from the board-end base 22. The surface of the latches 23 facing the board-end base 22 is a smooth surface 232.

[0033] Through the above solution, this utility model adopts the existing technology of using a snap-fit ​​connection to achieve a relatively fixed structure between the wire end connector 1 and the board end connector 2. It innovatively designs two user-operable limiting rods 12 on the wire end connector 1. The limiting rods 12 restrict the snap-fit ​​23 of the board end connector 2, which can prevent loosening caused by its own elasticity or deformation due to external force, and ensure that the snap-fit ​​23 can be stably hooked into the snap-fit ​​groove 113 of the wall 111 to achieve a stable connection. The end of either or both of the limiting rods 12 is set as a smooth surface 121, which is defined as a surface without a hook-like structure.

[0034] refer to Figure 3 As shown, a specific embodiment of the wire connector 1 is illustrated.

[0035] The rear end face of the aforementioned wire end base 11 is provided with a movable hole 115, which extends into the slot 114; the limiting rod 12 is movably fitted into the movable hole 115.

[0036] Furthermore, the aforementioned wire connector 1 also includes a cable harness 17 and a wire end socket 18; the wire end terminal 13 is a metal terminal, which includes a front cup-shaped groove 131 and a rear cup-shaped groove 132; an annular elastic terminal 133 is disposed in the front cup-shaped groove 131, and the front end of the front cup-shaped groove 131 is provided with an extension portion 1311 extending radially to prevent the annular elastic terminal 133 from falling forward out of the front cup-shaped groove 131; the cable harness 17 includes a plurality of cables 171, and the cables 171 are electrically connected to the corresponding rear cup-shaped groove 132; the wire end socket 18 is fixed behind the wire end base 11 and covers the connection interface between the cable harness 17 and the wire end terminal 13. In this embodiment, the limiting rod 12 passes through the wire end socket 18 and the wire end base 11 in sequence.

[0037] Meanwhile, a limiting ring 122 is provided on the inner end circumference of the limiting rod 12; a spring 14 is sleeved on the circumference of the limiting rod 12, and the two ends of the spring 14 respectively abut against the limiting ring 122 and the step 116 provided in the movable hole 115; an anti-rotation block 123 is provided on the circumference of the limiting ring 122, and an anti-rotation groove 117 is provided on the side wall of the movable hole 115 for sliding engagement of the anti-rotation block 123; a pull ring 15 is connected between the outer ends of the two limiting rods 12, and a pull bar 16 is connected to the pull ring 15.

[0038] Secondly, the end of the aforementioned wire end seat 18 is provided with a stop protrusion 181 for the pull ring 15 to hook onto. Thus, the pull ring 15 can be hooked after the limit rod 12 is pulled out to prevent the limit rod 12 from retracting.

[0039] The number of the aforementioned insulating terminal blocks 112 is set to an odd number greater than or equal to three, and the enclosure 111 is provided with a recessed wall portion 118, at least a portion of which is located between two adjacent insulating terminal blocks 112.

[0040] refer to Figure 4 As shown, a specific embodiment of the board-end connector 2 is illustrated.

[0041] Both sides of the aforementioned plate end base 22 are provided with an inwardly recessed step portion 222. At least a portion of the buckle 23 is located in the step portion 222 on the corresponding side, and the front and rear ends of the hook 231 are respectively provided with a guide slope 233. By providing the guide slope 233, the hook 231 can more easily enter and exit the buckle groove 113.

[0042] Furthermore, the plate end base 22 is provided with a groove 25 that matches the recessed wall portion 118. The groove 25 is located between two adjacent terminal slots 221 on the left and right sides. Mounting holes 26 are provided on the panel of both the stepped portion 222 and the groove 25. Metal internal thread element 27 is provided in the mounting hole 26.

[0043] In other words, when the wire connector 1 is pushed into the board connector 2, the two smooth surfaces 121 on the truncated cylinder at the end of the limiting rod 12 of the wire connector 1 will engage with the slot between the latch 23 and the board base 22. Finally, the flat surface at the end of the limiting rod 12 will abut against the latch 231 of the board connector 2 and the end face of the board base 22. As the distance between the wire connector 1 and the board connector 2 decreases, the spring 14 will be compressed. At the same time, the ends of the two latches 23 of the board connector 2 will also be embedded in the latch slots 113 of the wire connector 1, becoming... Figure 5 The state shown is as follows. In this state, the end of the limiting rod 12 presses against the back of the hook 231, so that its retraction stroke is less than the height of the hook 231, preventing it from exiting the latching slot 113. If the wire connector 1 is accidentally pulled back, the hook 231 cannot exit due to the influence of the limiting rod 12, and the wire connector 1 will not be able to be removed. When it is necessary to disengage, the user needs to pull the pull ring 15 back, so that the end of the limiting rod 12 first retracts out of the slot between the latch 23 and the board base 22. Then, the wire connector 1 will move away from the board connector 2, and the slope on the latching slot 113 will exert force on the guide slope 233 of the hook 231, causing the two to elastically deform in opposite directions and separate from each other. In this way, the disengagement action is completed.

[0044] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A wire-end connector, characterized in that: It includes a wire end base and two limiting rods; the end face of the wire end base is provided with a wall and several tubular insulating terminal seats, and each insulating terminal seat is provided with a wire end terminal; the inner wall of the wall is provided with at least one snap-fit ​​groove, and a slot is defined between the wall and the insulating terminal seat; the limiting rods are movably disposed in the slot, and the end of at least one limiting rod is provided with a smooth surface.

2. The wire connector as described in claim 1, characterized in that: The rear end face of the wire end base is provided with a movable hole, which extends into the slot; the limiting rod is movably fitted into the movable hole.

3. The wire connector as described in claim 2, characterized in that: The wire-end connector further includes a cable harness and a wire-end adhesive base; the wire-end terminal includes a front cup-shaped groove and a rear cup-shaped groove; an annular elastic terminal is disposed in the front cup-shaped groove, and the front end of the front cup-shaped groove is provided with an extension portion extending radially to prevent the annular elastic terminal from falling forward out of the front cup-shaped groove; the cable harness includes a plurality of cables, and the cables are electrically connected to the corresponding rear cup-shaped groove; the wire-end adhesive base is fixed behind the wire-end base and covers the connection interface between the cable harness and the wire-end terminal.

4. The wire connector as described in claim 3, characterized in that: A limiting ring is provided on the inner end circumference of the limiting rod; a spring is sleeved on the circumference of the limiting rod, and the two ends of the spring respectively abut against the limiting ring and the step provided in the movable hole; an anti-rotation block is provided on the circumference of the limiting ring, and an anti-rotation groove is provided on the side wall of the movable hole for the anti-rotation block to slide; a pull ring is connected between the outer ends of the two limiting rods, and a pull bar is connected to the pull ring.

5. The wire connector as described in claim 4, characterized in that: The end of the wire end seat is provided with a stop protrusion for the pull ring hook to be fastened.

6. The wire connector as described in claim 1, characterized in that: The number of insulating terminal blocks is set to an odd number of three or more, and the enclosure is provided with a recessed wall portion, at least a portion of which is located between two adjacent insulating terminal blocks.

7. A board-end connector, characterized in that: The device includes a panel, a plate end base, and two clips. The plate end base is located on one side of the panel and has several terminal slots therein, each containing a plate end terminal that passes through the plate end base. The clips are located on both sides of the plate end base and each clip includes a hook that is positioned away from the plate end base. The surface of the clip facing the plate end base is smooth.

8. The board-end connector as described in claim 7, characterized in that: Both sides of the plate end base are provided with an inwardly recessed step portion, at least a portion of the buckle is located in the step portion on the corresponding side, and the front and rear ends of the buckle are respectively provided with a guide slope.

9. The board-end connector as described in claim 8, characterized in that: The plate end base is provided with a groove, which is located between two adjacent terminal slots on the left and right. The panel of the stepped part and the groove is provided with mounting holes, and a metal internal thread element is provided in the mounting holes.

10. A high-current connector assembly, characterized in that... Includes the wire-end connector as described in claim 1 and the board-end connector as described in claim 7; the wire-end connector and the board-end connector are plugged into each other, the latch hook is engaged in the latch groove, and the limiting rod restricts the latch so that it cannot be separated from the latch groove.

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