CN201117955Y - Locking device of electric connector - Google Patents

Abstract

A locking device for an electrical connector, the electrical connector at least comprises an insulating shell, a terminal group and a shielding shell, the insulating shell having at least one side wall, so that a receiving space is formed between the shielding shell and the side wall, and a locking device can be fixed in the receiving space by a fulcrum, thereby making the locking device deflect in the receiving space with the fulcrum as the center. The locking device has a body, a holding portion, a reset spring arm and an operating portion, the fulcrum of the electrical connector passes through the central area of the body, and the holding portion and the operating portion are respectively adjacent to the two ends of the body; the reset spring arm is formed by bending from the body of the locking device, and the reset spring arm presses against the side wall of the receiving space with a prestress, so that the holding portion of the locking device is normally maintained at a predetermined position.

Description

Locking device for electrical connectors

【Technical field】

The utility model relates to a locking device for an electrical connector, in particular to a locking device for a cable terminal connector. The locking device is used to lock a docking electronic device so as to establish a stable electrical connection state .

【Background technique】

Known technologies such as US Patent No. US 6,945,808B1 "Connector in which locking mechanism is protected", please refer to Fig. 1, which discloses a kind of accommodating space 20 reserved on the side of the connector to install a locking device 11, wherein the locking device 11 has a reset spring arm 12, and the reset spring arm 12 is used to abut against the edge of the accommodating space 20, so that the lock device is used to lock the docking electronic device. In the prior art, the locking device 11 is manufactured by a blanking method (Blanking). The fractured surface of the metal plate is the stressed surface of the reset elastic arm 12 .

For the blanking and forming processing method of general sheet metal parts, the width of the elastically deformable region of the return spring arm 12 can only be greater than the thickness of the metal sheet, so the user must apply strong stress to make the return spring arm 12 elastically deformable. The arm 12 elastically deforms to release the locked state of the connector and the docking electronic device.

On the other hand, the cutting edge of the general metal plate after the above treatment is often relatively sharp, so the operation method of the conventional technology may cause the user to be cut by the sharp edge, so the conventional technology needs to be improved.

【Content of utility model】

The purpose of the utility model is to provide a locking device for an electrical connector, the locking device has a reset spring arm that is relatively elastically deformable.

In order to achieve the above object, the utility model provides a locking device for an electrical connector, the electrical connector has a terminal group inserted in an insulating shell, the insulating shell is covered with a shielding shell, and the insulating shell The housing has at least one side wall, so that an accommodating space is formed between the shielding case and the side wall, and the accommodating space can accommodate the locking device, and the locking device at least includes:

A main body is pivotally connected to the accommodating space by a shaft, so that the main body can be deflected in the accommodating space;

a buckling part is arranged at one end of the main body, and is used for buckling a pair of docking electronic devices;

a return spring arm, bent from the body, the return spring arm abuts against the side wall of the accommodating space; and

An operation part is arranged on the end of the main body away from the buckling part, and the main body can be deflected around the fulcrum by means of the operation part.

In combination with the above, the utility model proposes a locking device for an electrical connector, the electrical connector at least includes an insulating housing, a terminal group and a shielding housing, and one side of the insulating housing is provided with an accommodating space for accommodating the lock buckle device. The locking device at least includes a main body, a holding part, an operating part and a reset elastic arm, and the main body is a plate-shaped member integrally formed by a metal plate, and the main body is provided with a shaft as the pivotal rotation center of the locking device , the buckling part is used to lock an external docking connector; the reset elastic arm is used to provide the elastic restoring force for the locking device to return to the predetermined locking position; the operating part is used to provide the user with the ability to release the locking device Operating basis.

More specifically, the reset elastic arm is formed by bending and extending outward from the edge of the body, so that the force-bearing surface of the reset elastic arm is approximately perpendicular to the body, and the reset elastic arm and the insulating shell generate force interference, so that the buckle part is kept in the locked position, and the operation part extends from the body in a direction away from the buckle part, so that the operation part and the buckle part are respectively located on both sides of the shaft rotation center of the lock device .

In addition, in the embodiment of the utility model, the locking mechanism extends a reset spring arm between the center of rotation of the shaft of the body and the holding part, so that the distance from the reset spring arm to the center of rotation of the shaft of the lock mechanism can be shortened. , so as to reduce the predetermined torque for the cable terminal connector to deflect the locking mechanism, so as to reduce the reverse torque required by the user to release the cable terminal connector and the docking electronic device; but this is only a part of implementing the utility model This kind of aspect is not limited by this design of the utility model.

To sum up the above, the locking device of the electrical connector of the present invention has the following advantages compared with the prior art:

(1) The reset elastic arm of the locking device of the present invention is made by bending and forming, and the arm surface of the reset elastic arm is arranged vertically to the flat plate surface of the main body, so the reset elastic arm abuts against the accommodating space If the stress in the direction of the side wall is smaller, it will be easier for the user to press and apply force, thereby improving the convenience of use.

(2) The operating part of the locking device of the present utility model is bent and shaped, and the force application surface of the user is parallel to the swing direction of the body. In addition to providing a large force application area for easy pressing and pushing, it will not press on sharp edges And not easy to cause cuts.

【Description of drawings】

In order to make the above and other purposes, features, advantages and embodiments of the present invention more obvious and understandable, the detailed description of the accompanying drawings is as follows:

Fig. 1 is a schematic diagram of a locking mechanism in the prior art.

FIG. 2A is a schematic diagram of the electrical connector of the present invention.

FIG. 2B is a schematic diagram of the electric connector of the present invention after removing the shielding case.

3A, 3B, 3C, and 3D are diagrams showing configuration states of the locking device of the electrical connector of the present invention.

4A and 4B are schematic diagrams of the action state of the locking device of the electrical connector of the present invention.

【Detailed ways】

This utility model uses a preferred embodiment of the technology of the utility model, and describes the content and technology of the utility model in detail in conjunction with the diagrams.

First, please refer to FIG. 2A and FIG. 2B , which are schematic diagrams of the electrical connector of the present invention, and schematic diagrams of the electrical connector of the present invention with the shielding case removed. As shown in Figure 2A and Figure 2B, the utility model proposes a locking device 200 for an electrical connector, the electrical connector at least includes an insulating shell 100, a terminal group 300 and a shielding shell 400, the insulating The casing 100 is a carrier with accommodating spaces 110 on both sides. In this embodiment, the two accommodating spaces 110 of the insulating casing 100 are respectively defined by a side wall 111 and the shielding casing 400 . The terminal group 300 is arranged in the insulating housing 100 and is located between the two accommodating spaces 110. The shielding housing 400 is made of metal and covers the insulating housing 100 and the terminal group 300 to provide electrical connector shielding. Protect. The above two accommodating spaces 110 respectively have a shaft 120 for pivotally fixing the locking device 200 in the accommodating spaces 110 . The detailed pivoting method will be described later in other drawings.

Next, please refer to Figures 3A, 3B, 3C, and 3D, which are schematic diagrams of the configuration state of a locking device of the electrical connector of the present invention, although in the embodiment of the present invention, the insulating housing 100 has two space 110, but for the convenience of description, only a single locking device 200 will be described below, and those skilled in this art can easily understand the structure of another locking device in the present invention based on this. As shown in Figure 3A, the locking device 200 is mainly used to lock and/or release (Lock and/or Release) the cable terminal connector to dock with an electronic device (not shown in the figure), and the locking device 200 is roughly elongated A flat plate-like member includes a main body 210 , a buckling portion 211 , an operating portion 212 , a shaft hole 220 and a reset elastic arm 230 . The main body 210 is integrally formed as a metal sheet, and the pivot hole 220 is formed in the central area of the flat plate surface of the main body 210 . With the shaft hole 220 as a boundary, two ends of the main body 210 respectively extend to form the above-mentioned buckling portion 211 and the operating portion 212 . Wherein the buckling portion 211 is used to buckle onto the docked electronic device (not shown in the figure) to lock the docked electronic device. The operation part 212 is used to provide an operation basis for the user to release the locking device 200 . Please refer to FIG. 2A and FIG. 2B at the same time, the locking device 200 is installed in the accommodating space 110, and the locking device 200 is pivoted to the fulcrum 120 in the accommodating space 110 through the fulcrum hole 220 superior. Therefore, the body 210 of the locking device 200 can swing in a limited range in the accommodating space 110 around the pivot 120 . The reset spring arm 230 of the lock device 200 extends outward from the edge of the body 210 , and the reset spring arm 230 abuts against the side wall 111 of the insulating housing 100 , so that the buckle portion 211 of the lock device 200 It can be kept in a fixed position normally. The reset elastic arm 230 of the locking device 200 is bent after the body 210 is blanked, so as to be perpendicular to the flat plate surface of the body 210 (see FIGS. 3A and 3B ), so that the locking device 200 The reset elastic arm 230 abuts against the surface of the side wall 111 of the insulating housing 100; in this embodiment, the surface of the resetting elastic arm 230 abutting against the side wall 111 of the insulating housing 100 is bent into a U shape Finally, it abuts against the side wall 111 of the insulating housing 100, and the reset spring arm 230 can apply a prestress (pre-load) to push the side wall 111 of the insulating housing 100 by using the U-shaped bend, so that the The locking device 200 maintains a certain posture. According to the illustration of this embodiment, the posture is a position where the locking device 200 maintains a normally locked position. The reset elastic arm 230 can be provided on the main body 210 and located between the buckle portion 211 and the pivot hole 220, so as to interfere with the force formed by the reset elastic arm 230 against the side wall 111 of the accommodating space 110 to provide the locking device 200 maintains the elastic restoring force of the locked state; and in another embodiment, the reset elastic arm 230 can also be disposed on the body 210 and located between the operating portion 212 and the fulcrum hole 220 (as shown in FIG. 3C ). In this way, on the flat plate surface of the body of the locking device 200 in the above two embodiments, the disposition positions of the operation part 212 and the reset spring arm 230 do not coincide with the pivot hole 220, so that the thrust applied to the operation part 212 and The elastic restoring force provided by the reset elastic arm 230 is respectively centered on the fulcrum hole 220 (or the fulcrum 120 ) to form two moments in opposite directions, so the elastic return provided by the reset elastic arm 230 to keep the buckle 200 in the fastened state force (see FIGS. 4A and 4B ) to lock the docking connector, or to release the docking connector by pushing the operating portion 212 to release the buckled state of the latch 200 . In addition, the operation part 212 can be bent to be perpendicular to the operation plate 213 of the main body 210, so as to increase the force-bearing area and facilitate the user to press and apply force; or, the operation part 212 can also overlap a pad 214 to increase the force-bearing area. The force area (as shown in FIG. 3D ) can also provide the user with the convenience of pressing and applying force.

Please refer to FIG. 4A and FIG. 4B , which are diagrams illustrating the action state of the locking device of the electrical connector of the present invention. As shown in FIG. 4A , the locking device 200 of the electrical connector of the present invention is subjected to force interference by the reset elastic arm 230 against the side wall 111 of the accommodating space 110 , so that the locking device 200 remains engaged. state to lock a pair of mating connectors that match the electrical connector. As shown in FIG. 4B , the locking device 200 of the electrical connector of the present invention is pressed by an external force and applied to the operating part 212, and the operating part 212 is forced to generate a moment centered on the pivot 120 to resist the above reset. The elastic restoring force provided by the elastic arm 230 itself provides another opposite moment with the pivot 120 as the center of rotation, so that the locking device 200 is in a loose state and releases the external connector.

Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention.

[Description of main component symbols]

100: Insulation shell 212: Operation part

110: Accommodating space 213: Operating tablet

111: side wall 214: gasket

120: fulcrum 220: fulcrum hole

200: Locking device 230: Reset elastic arm

210: Body 300: Terminal group

211: Buckling part 400: Shielding shell

Claims (4)

1. the locker of an electric connector, it is characterized in that: this electric connector has a terminal group that is inserted in the insulation shell, the outer shield shell that coats of this insulation shell, and this insulation shell has a sidewall at least, make and form an accommodation space between this shield shell and this sidewall, this locker of this holding space for holding, this locker comprises at least:

One body is to be articulated in this accommodation space by a fulcrum, makes this body must be in this accommodation space intrinsic deflection;

One holding part is set at an end of this body, holds a butt joint electronic installation in order to button;

One elastic arm that resets, this body bending forms certainly, and this elastic arm that resets is replaced this sidewall of this accommodation space; And

One operating portion is set on this body the end away from this holding part, and borrowing this operating portion to make this body can this fulcrum be center deflection.

2. the locker of electric connector as claimed in claim 1, it is characterized in that: this locker is to cut shaping by a sheet metal, and this elastic arm that resets is to be formed by the vertically stubborn folding of this locker.

3. the locker of electric connector as claimed in claim 2, it is characterized in that: the elastic arm that resets of this locker has a stubborn folding place that takes the shape of the letter U at least.

4. the locker of electric connector as claimed in claim 1 is characterized in that: this sidewall is to be formed by the stubborn folding of this shield shell.

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