A connector by rotation locking

The rigid locking structure with rotation lock solves the problems of easy lock failure and reverse installation of electrical connectors, and realizes a more stable and smaller connector design.

CN224502535UActive Publication Date: 2026-07-14WENZHOU ZHUCHENG ELECTRICAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU ZHUCHENG ELECTRICAL CO LTD
Filing Date
2025-07-28
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The elastic locking mechanism of existing electrical connectors is prone to failure, resulting in the locking mechanism collapsing, insufficient locking force, and difficulty in preventing reverse installation.

Method used

A rigid locking structure is adopted, and a stable connection between the pin seat at the plate end and the hole seat at the wire end is achieved through the rotation locking mechanism of the convex hull and the boss, combined with the arc structure design.

Benefits of technology

It improves connector stability and foolproofness, reduces wear, saves space, is suitable for thinner and smaller designs, and prevents reverse installation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of connector, concretely relates to a connector through rotation locking, including board end connector and line end connector, the board end connector includes board end needle holder, the board end needle holder includes the slot, one side of the slot is equipped with the through -hole, the through -hole opposite side is equipped with the boss, the line end connector includes the line end hole seat, one side of the line end hole seat is equipped with the convex hull, when the line end hole seat inserts the slot, the convex hull abuts the boss outside when rotating 180 makes the convex hull enter the through -hole, push the convex hull into the abutment through -hole close to the bottom surface one side of the slot, rotate 180 again make the convex hull abut the boss close to the bottom surface one side of the slot, and the board end needle holder adopts rigid lock catch structure with the line end hole seat, that is, through the convex hull and the boss adopt rotation locking, and the current connector mostly adopts elastic lock catch, has the shortcomings such as lock catch couch, lock catch force deficiency, lock catch failure under external force, and the lock catch of rigid structure can effectively solve above problems.
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Description

Technical Field

[0001] This utility model relates to the field of connectors, and more specifically to a connector that is locked by rotation. Background Technology

[0002] Electrical connectors, also known as circuit connectors or electronic connectors, are used to bridge two electrical components in a circuit, allowing current or signals to flow from one component to another. Because electrical connectors are easy to manufacture into standardized components and offer high electrical connection reliability, they are particularly suitable for modular components.

[0003] In related technologies, electrical connectors generally include wire-end connectors and board-end connectors. The wire-end connector is inserted into the board-end connector to achieve an electrical connection. During the insertion process, the elastic latch on the wire-end connector is inserted into or pulled out of the board-end connector under a certain compressive force, and then contacts and connects with the connection terminal. The use of elastic latches has disadvantages such as latch sagging, insufficient latching force, and latch failure under external force. Utility Model Content

[0004] The purpose of this invention is to provide a connector that is locked by rotation to solve the problems mentioned in the background art.

[0005] The technical solution of this utility model is as follows: A connector that is locked by rotation includes a board-end connector and a wire-end connector. The board-end connector includes a board-end pin seat, which includes a slot. A through hole is provided on one side of the slot, and a boss is provided on the opposite side of the through hole. The wire-end connector includes a wire-end hole seat, which has a protrusion on one side. When the wire-end hole seat is inserted into the slot, the protrusion abuts against the outer side of the boss and rotates 180° to allow the protrusion to enter the through hole. The protrusion is then pushed into the through hole and abuts against the side of the slot near the bottom surface. The protrusion is rotated 180° again to allow the protrusion to abut against the side of the boss near the bottom surface of the slot.

[0006] Preferably, the wire-end connector further includes a terminal, the wire-end socket includes a terminal hole, and the terminal is inserted into the terminal hole; the board-end connector includes a pin, the board-end pin socket includes a pin hole, the pin is inserted into the pin hole, and the pin is inserted into the terminal.

[0007] Preferably, the terminal has bending members on both sides of the pin, and the bending members have protrusions that abut against the pin.

[0008] Preferably, the plate end pin seat has multiple raised surfaces on both sides of the through hole.

[0009] Preferably, the plate end needle seat has multiple concave surfaces on both sides.

[0010] Preferably, the outer side of the pin hole is provided with a guide groove to facilitate pin insertion.

[0011] Preferably, the wire end hole seat has a hook on one side, the hook has a notch around its periphery, and the terminal includes a snap-fit ​​foot that abuts against the hook.

[0012] Preferably, the terminal includes a crimping pin, which includes multiple grooves to increase the contact area when crimping the cable.

[0013] Preferably, the pins have chamfered ends to facilitate insertion.

[0014] Preferably, the wire end hole seat has arc-shaped surfaces on both sides to facilitate its rotation within the slot.

[0015] Compared with the prior art, the present invention provides a connector that is locked by rotation, which has at least one of the following advantages:

[0016] 1. The pin header and wire end hole header adopt a rigid locking structure, that is, the boss and the protrusion are locked by rotation. Compared with the elastic locking used in most existing connectors, which has the disadvantages of locking buckle sagging, insufficient locking force and locking failure under external force, the rigid locking structure can effectively solve the above problems.

[0017] 2. The two inner sides of the pin seat at the plate end are equipped with bosses and through holes to form a foolproof structure, which can prevent the pin seat at the wire end from being installed backwards.

[0018] 3. The outer sides of the wire end hole seat adopt an arc-shaped structure, which facilitates rotation, reduces wear between the plate end needle seat and the wire end hole seat, and improves the stability of the product. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

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

[0021] Figure 2 This is a cross-sectional view of the embodiment of the present invention from the main view direction.

[0022] Figure 3 This is a schematic diagram of the wire end hole seat being inserted into the slot according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the wire end hole seat rotating 180° to allow the convex hull to enter the through hole in an embodiment of the present invention.

[0024] Figure 5This is a schematic diagram of the end hole seat being fully installed into the plate end pin seat according to an embodiment of the present invention.

[0025] Figure Labels

[0026] 1-Board connector; 11-Board pin header; 111-Slot; 112-Through hole; 113-Boss; 115-Pin hole; 116-Raised surface; 117-Concave surface; 118-Guide groove; 12-Pin; 121-Bent part; 122-Raised surface; 123-Chamfer; 2-Wire connector; 21-Wire end hole; 211-Raised bulge; 212-Terminal hole; 213-Hook; 214-Slotted groove; 22-Terminal; 221-Snap-fit ​​pin; 222-Crimp pin; 223-Groove; Detailed Implementation

[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0028] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0029] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] like Figures 1 to 5 As shown, the device includes a board-end connector 1 and a wire-end connector 2. The board-end connector 1 includes a board-end pin seat 11, which includes a slot 111. A through hole 112 is provided on one side of the slot 111, and a boss 113 is provided on the opposite side of the through hole 112. The wire-end connector 2 includes a wire-end hole seat 21, which has a protrusion 211 on one side. Figure 3 As shown, when the wire end hole seat 21 is inserted into the slot 111, the protrusion 211 abuts against the outer side of the boss 113, as... Figure 4 As shown, the wire end hole seat 21 is rotated 180° so that the protrusion 211 enters the through hole 112, and the protrusion 211 is pushed into the through hole 112 to the side near the bottom surface of the slot 111, as shown. Figure 5 As shown, rotating 180° again causes the protrusion 211 to abut against the boss 113 near the bottom surface of the slot 111. The board-end pin seat 11 and the wire-end hole seat 21 adopt a rigid locking structure, that is, the protrusion 211 and the boss 113 are locked by rotation. Compared with the elastic locking used in most existing connectors, which has disadvantages such as locking buckle sagging, insufficient locking force, and locking failure under external force, the rigid locking structure can effectively solve the above problems. Due to the use of a rigid locking structure, compared with elastic locking, it requires less space, which allows the connector to be made thinner and smaller, effectively saving PCB board space and improving the application range. The two inner sides of the board-end pin seat 11 are respectively formed by the boss 113 and the through hole 112 to form a foolproof structure, which can prevent the wire-end hole seat from being installed backwards.

[0033] The wire connector 2 further includes a terminal 22, and the wire hole seat 21 includes a terminal hole 212, into which the terminal 22 is inserted; the board connector 1 includes a pin 12, and the board pin seat 11 includes a pin hole 115, into which the pin 12 is inserted, and into the terminal 22; the terminal 22 has a bending member 121 on both sides of the pin 12, and the bending member 121 has a protrusion 122, which abuts against the pin 12, thereby improving the locking strength between the terminal and the pin; the board pin seat 11 has multiple protruding surfaces 116 on both sides of the through hole 112, which are used to limit and fix the terminal 22, preventing the terminal from shaking in the board pin seat 11.

[0034] The plate-end pin holder 11 has multiple concave surfaces 117 on both sides; the outer side of the pin hole 115 has a guide groove 118 to facilitate the insertion of the pin 12; the wire end hole holder 21 has a hook 213 on one side, and the hook 213 has a notch 214 on its periphery; the terminal 22 includes a snap-fit ​​foot 221, which abuts against the hook 213; the terminal 22 includes a wire crimping foot 222, which includes multiple grooves 223 to increase the contact area when crimping cables; the pin 12 has chamfers 123 at both ends to facilitate insertion; the wire end hole holder 21 has arc-shaped surfaces 214 on both sides to facilitate rotation within the slot 111; the outer sides of the wire end hole holder 21 have an arc structure to facilitate rotation, reduce wear between the plate-end pin holder 11 and the wire end hole holder 21, and improve product stability.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A connector that is locked by rotation, characterized in that: The device includes a board-end connector and a wire-end connector. The board-end connector includes a board-end pin seat, which includes a slot. A through hole is provided on one side of the slot, and a boss is provided on the opposite side of the through hole. The wire-end connector includes a wire-end hole seat, which has a protrusion on one side. When the wire-end hole seat is inserted into the slot, the protrusion abuts against the outer side of the boss and rotates 180° to allow the protrusion to enter the through hole. The protrusion is then pushed into the through hole and abuts against the side of the through hole near the bottom surface of the slot. The device rotates 180° again to allow the protrusion to abut against the side of the boss near the bottom surface of the slot.

2. The connector with rotation locking as described in claim 1, characterized in that: The wire-end connector further includes a terminal, and the wire-end socket includes a terminal hole, the terminal being inserted into the terminal hole; the board-end connector includes a pin, and the board-end pin socket includes a pin hole, the pin being inserted into the pin hole, and the pin being inserted into the terminal.

3. The connector with rotation locking as described in claim 2, characterized in that: The terminal has bending parts on both sides of the pin, and the bending parts have protrusions that abut against the pin.

4. The connector with rotation locking as described in claim 1, characterized in that: The plate end pin seat has multiple protruding surfaces on both sides of the through hole.

5. A connector with rotation locking as described in claim 1, characterized in that: The plate end pin seat has multiple concave surfaces on both sides.

6. A connector with rotation locking as described in claim 2, characterized in that: The outer side of the pin hole is provided with a guide groove to facilitate the insertion of the pin.

7. A connector with rotation locking as described in claim 2, characterized in that: The terminal is provided with a hook on one side, and a notch is provided around the hook. The terminal includes a snap-fit ​​pin, which abuts against the hook.

8. A connector with rotation locking as described in claim 2, characterized in that: The terminal includes a crimping pin, which has multiple grooves to increase the contact area when crimping cables.

9. A connector that is locked by rotation as described in claim 2, characterized in that: The pins have chamfered ends to facilitate insertion.

10. A connector with rotation locking as described in claim 1, characterized in that: The wire end hole seat has arc-shaped surfaces on both sides, which facilitates its rotation within the slot.