Structurally reinforced card edge connector live latch

Abstract

The utility model discloses a structure reinforced's card edge connector movable lock catch, including movable lock catch insulator and movable lock catch metal support, and the inside of movable lock catch insulator forms metal support accommodating cavity, and movable lock catch insulator includes the insulating main part department of hinged on card edge connector and the insulating ejection portion of the insertion card slot of the stretch into card edge connector, and the ejection face of insulating ejection portion forms the opening, and movable lock catch metal support includes metal support fixed part and metal support ejection portion, and metal support fixed part is fixed in metal support accommodating cavity, and metal support ejection portion is through the opening and is stretched to the ejection face outside of insulating ejection portion for contact and eject electronic card, the utility model discloses in movable lock catch insulator and embeds movable lock catch metal support, and the ejection of electronic card is carried out by metal support ejection portion, effectively improved the strength of card edge connector's movable lock catch, and guaranteed the signal transmission stability of card edge connector.

Description

Technical Field

[0001] This utility model relates to a connector, and more particularly to a reinforced snap-lock connector with a movable locking mechanism. Background Technology

[0002] The plastic part of the edge connector has a movable locking latch with an integral L-shaped structure at both ends of the insert slot, which can rotate. One arm of the L-shape of the movable locking latch is the insulating main body, which is rotatably mounted on the edge connector. The other arm of the L-shape of the movable locking latch is the insulating ejection part.

[0003] When the electronic card is inserted into the card slot of the card edge connector, the bottom surface of the electronic card presses against the protruding part of the movable latch. The movable latch rotates a certain angle, and the protruding locking point on the insulating body of the movable latch engages with the card slot on the side of the electronic card, thus stopping and positioning the electronic card and preventing it from coming out during use. To remove the electronic card from the card edge connector, first rotate the movable latch. As the protruding locking point on the insulating body of the movable latch exits the card slot on the side of the electronic card, the protruding part of the movable latch gradually rises and presses against the bottom surface of the electronic card, causing the electronic card to be lifted out of the card slot of the card edge connector. At this point, the electronic card can be easily pulled out of the card slot of the card edge connector.

[0004] Due to the complex shape and structure of the movable locking mechanism, existing edge connectors use injection-molded plastic parts for their movable locking mechanisms. During the card removal process, the ejector portion of the movable locking mechanism is subjected to significant torque, making it prone to breakage at the inflection point between the ejector portion and the insulating body. Furthermore, the ejector portion of the movable locking mechanism repeatedly rubs against the electronic card during the repeated locking process. This friction generates plastic shavings, which can enter the connector's card slot and cause poor contact. Repeated friction also wears down the ejector portion of the movable locking mechanism, weakening its subsequent locking ability or even causing it to fail. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a structurally enhanced movable locking latch for the edge connector. This structurally enhanced movable locking latch has high strength, is not easily damaged during long-term use, and will not affect the signal transmission of the edge connector.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a structurally enhanced card edge connector movable latch, including a movable latch insulator. The movable latch insulator includes an insulating main body hinged to the card edge connector and an insulating ejector part extending into the card insertion slot of the card edge connector. A metal support receiving cavity is formed inside the movable latch insulator. An opening communicating with the metal support receiving cavity is formed on the ejector surface of the insulating ejector part facing the electronic card. A movable latch metal support is also provided. The movable latch metal support includes a metal support holding part and a metal support ejector part fixedly disposed on the metal support holding part. The metal support holding part is fixedly installed in the metal support receiving cavity. The metal support ejector part extends through the opening to a set height position outside the ejector surface of the insulating ejector part. The metal support ejector part can contact the bottom surface of the electronic card inserted into the card edge connector to eject it from the card edge connector.

[0007] As a further improvement of this utility model, the metal bracket receiving cavity is an L-shaped structure, with one end extending inside the insulating main body and the other end extending inside the insulating ejection part. The metal bracket holding part of the movable locking metal bracket is an L-shaped structure that matches the metal bracket receiving cavity, with one end located inside the insulating main body and the other end inside the insulating ejection part. The metal bracket ejection part is integrally formed on the surface of the other end of the metal bracket holding part, and the root of the metal bracket ejection part is tightly inserted into the opening of the insulating ejection part.

[0008] As a further improvement of this utility model, the metal bracket holding part is provided with at least one holding hole, and the metal bracket receiving cavity is formed with a holding post tightly inserted in the holding hole. The two ends of the holding post are fixedly connected to the inner sidewall of the metal bracket receiving cavity to form an integral structure.

[0009] As a further improvement of this utility model, the metal bracket holding part of the movable locking metal bracket is integrally formed in the metal bracket receiving cavity inside the movable locking insulator by in-mold injection molding.

[0010] As a further improvement of this utility model, the metal bracket protrusion portion near the insulating main body portion forms an inclined surface or stepped surface with an end size larger than the root size, and the side wall of the opening of the insulating protrusion portion near the insulating main body portion forms an inclined surface or stepped groove that matches the inclined surface or stepped surface of the metal bracket protrusion portion.

[0011] As a further improvement of this utility model, at least one side wall of the metal bracket holding part is formed with an outwardly protruding holding edge of a dovetail or T-shaped structure.

[0012] As a further improvement of this utility model, the side of the metal bracket ejection part away from the insulating main body part is formed by multiple guide surfaces, which are formed by the arc guide surface, the chamfered inclined guide surface, or the arc surface and the inclined surface, and are pressed against the bottom surface of the electronic card inside the card edge connector to eject the electronic card.

[0013] As a further improvement of this utility model, the ejector surface of the insulating ejector part is a stepped surface with a height higher on the side closer to the insulating main body than on the side farther from the insulating main body, and the end face of the metal bracket ejector part is horizontally aligned and connected with the ejector surface of the insulating ejector part on the side closer to the insulating main body.

[0014] As a further improvement of this utility model, the outer side wall of the movable locking insulator facing away from the electronic card is also provided with a metal bracket material strip through hole that communicates with the metal bracket receiving cavity. A material strip connecting rib is formed on the side wall of the metal bracket holding part of the movable locking metal bracket, and the material strip connecting rib is accommodated in the material strip through hole of the metal bracket.

[0015] The beneficial technical effects of this utility model are as follows: By embedding a metal bracket for the movable locking buckle within the plastic of the movable locking buckle of the card edge connector, the strength of the movable locking buckle of the card edge connector is greatly improved. When the electronic card is ejected, the insulating ejection part of the movable locking buckle is less likely to break or be damaged. Furthermore, by exposing the metal bracket ejection part of the movable locking buckle to a certain height outside the ejection surface of the insulating ejection part, the metal bracket ejection part contacts the bottom surface of the electronic card when the electronic card is ejected. The metal bracket ejection part will not generate dust even after long-term friction with the electronic card, thus preventing the terminals of the card edge connector from becoming contaminated due to long-term friction and causing poor contact, ensuring the signal transmission stability of the card edge connector. At the same time, since the metal bracket holding part of the movable locking buckle is embedded in the movable locking buckle insulator, it will not contact the terminals in the card slot of the card edge connector. The metal bracket ejection part above the ejection surface of the ejection part exposed in the movable locking buckle insulator is at a certain distance from the terminals in the card slot of the card edge connector. Therefore, it will not make any contact with the terminals inside the card edge connector and will not affect the normal communication of the terminals inside the card edge connector. Attached Figure Description

[0016] Figure 1 An exploded 3D view of the card edge connector;

[0017] Figure 2 This is a diagram showing the usage status of the card edge connector;

[0018] Figure 3 This is a perspective view of the movable latch of this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0020] Figure 5 This is the main view of the movable latch of this utility model;

[0021] Figure 6 for Figure 5 Sectional view along the BB direction;

[0022] Figure 7 This is a rear view of the movable latch of this utility model;

[0023] Figure 8 This is a left view of the movable latch of this utility model;

[0024] Figure 9 This is a right view of the movable latch of this utility model;

[0025] Figure 10 This is a top view of the movable latch of this utility model;

[0026] Figure 11 This is a bottom view of the movable latch of this utility model;

[0027] Figure 12 This is a cross-sectional view of the card edge connector of this utility model in the card insertion state;

[0028] Figure 13 for Figure 12 Enlarged view of section C;

[0029] Figure 14 for Figure 12 Sectional view along the DD direction;

[0030] Figure 15 This is a cross-sectional view of the card edge connector of this utility model in the state of card ejection;

[0031] Figure 16 for Figure 15 Enlarged view of section E in the middle;

[0032] Figure 17 This is a diagram showing the movable locking buckle of this utility model located on the material strip;

[0033] Figure 18 This is a front view of a fixed-length material sheet used in the production process of the movable locking metal bracket of this utility model.

[0034] Figure 19 This is a left view of a fixed-length material sheet used in the production process of the movable locking metal bracket of this utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] Card edge connector---1; Electronic card---2; Circuit board---3;

[0037] Edge connector insulation body---11; Edge connector external terminal block---12;

[0038] Terminal block inside the connector---13; Movable latch---14;

[0039] Metal bridge---15; Positioning component---16; Movable locking insulator---141;

[0040] Insulation main body---1411; Insulation ejection part---1412;

[0041] Top surface---14121; including metal support holding part---1421;

[0042] Metal bracket protrusion part---1422; retaining hole---14211;

[0043] Support column---1413; Bevel---14221; Outwardly convex support edge---14212;

[0044] Material strip connecting rib---143; Material strip---4; Connecting plate---5;

[0045] Pre-cut structure---1431. Detailed Implementation

[0046] Example: A structurally reinforced card edge connector movable latch includes a movable latch insulator 141. The movable latch insulator 141 includes an insulating main body 1411 hinged to the card edge connector and an insulating ejector portion 1412 extending into the card insertion slot of the card edge connector. A metal support receiving cavity is formed on the inner side of the movable latch insulator 141. An opening communicating with the metal support receiving cavity is formed on the ejector surface 14121 of the insulating ejector portion facing the electronic card. A movable latch metal support 142 is also provided. The movable locking metal bracket 142 includes a metal bracket holding part 1421 and a metal bracket ejection part 1422 fixedly disposed on the metal bracket holding part 1421. The metal bracket holding part 1421 is fixedly installed in the metal bracket receiving cavity. The metal bracket ejection part 1422 extends through the opening to a set height position outside the ejection surface 14121 of the insulating ejection part 1412. The metal bracket ejection part 1422 can contact the bottom surface of the electronic card inserted into the card edge connector to eject it from the card edge connector.

[0047] In use, after inserting the electronic card into the card slot of the card edge connector, press down on the electronic card. The bottom surface of the electronic card abuts against the surface of the metal bracket protruding part 1422 of the movable lock, causing the movable lock to rotate as a whole. Finally, the protruding locking point on the movable lock insulator 141 of the movable lock engages with the card slot on the side wall of the electronic card, fixing the electronic card in place. When it is necessary to remove the electronic card, first reverse the movable lock. At the same time, the protruding locking point on the movable lock exits the card slot on the side wall of the electronic card, and the metal bracket protruding part 1422 on the protruding surface 14121 of the movable lock moves upward against the electronic card a certain distance. At this time, the electronic card can be easily removed. The above structure is a movable lock. Because a metal bracket 142 is embedded inside the movable latch, the force exerted by the electronic card is applied to the metal bracket 142, which enhances the overall strength of the movable latch. The insulating ejection part 1412 of the movable latch is less prone to breakage. Since the electronic card does not contact the insulating ejection part 1412 of the movable latch, the bottom surface of the electronic card only rubs against the ejection part 1422 of the metal bracket. Therefore, plastic shavings are avoided due to friction. The ejection part 1422 of the metal bracket is made of metal, which has good wear resistance. Repeated friction with the electronic card will not produce dust, preventing dust from entering the terminal surface of the card edge connector and ensuring stable signal transmission of the card edge connector.

[0048] The metal bracket receiving cavity has an L-shaped structure, with one end extending inside the insulating main body 1411 and the other end extending inside the insulating ejection part 1412. The metal bracket holding part 1421 of the movable locking metal bracket 142 has an L-shaped structure that matches the metal bracket receiving cavity, with one end located inside the insulating main body 1411 and the other end located inside the insulating ejection part 1412. The metal bracket ejection part 1422 is integrally formed on the other end surface of the metal bracket holding part 1421, and the root of the metal bracket ejection part 1422 is tightly inserted into the opening of the insulating ejection part 1412. The metal bracket retaining part 1421 adopts an L-shaped structure, which matches the L-shaped structure of the movable locking insulator 141. This allows it to extend not only within the insulating ejection part 1412 of the movable locking insulator 141, but also within the insulating main body 1411, thereby significantly improving the strength of the entire movable locking insulator 141. Furthermore, its L-shaped inflection point supports the L-shaped inflection point of the movable locking insulator 141, effectively preventing the root of the insulating ejection part 1412 of the movable locking insulator 141 from breaking under torque. In addition, the metal bracket receiving cavity can also be a straight structure extending along the insulating ejection part 1412, extending to the inner side of the lower end of the insulating main body 1411, which can also strengthen the insulating ejection part 1412. Such equivalent replacement structures that are easily conceived by those skilled in the art based on this application are all within the protection scope of this application.

[0049] The metal bracket holding part 1421 is provided with at least one holding hole 14211, and the metal bracket receiving cavity is formed with a holding post 14131 tightly inserted into the holding hole 14211. The two ends of the holding post 14131 are fixedly connected to the inner sidewall of the metal bracket receiving cavity to form an integral structure. Through the insertion and cooperation of the holding hole 14211 and the holding post 14131, a high-precision and stable positioning is achieved between the metal bracket holding part 1421 and the metal bracket receiving cavity, preventing the movable locking metal bracket 142 from loosening due to long-term stress.

[0050] The metal bracket holding part 1421 of the movable locking metal bracket 142 is integrally formed into the metal bracket receiving cavity inside the movable locking insulator 141 by in-mold injection molding. This method ensures the positional accuracy and firm connection between the two, and can also improve production efficiency.

[0051] The metal support protruding portion 1422 near the insulating main body 1411 forms a sloped surface 14221 or a stepped surface with an end dimension larger than the root dimension. The side wall of the opening of the insulating protruding portion 1412 near the insulating main body 1411 forms a sloped surface 14221 or a stepped groove that matches the sloped surface 14221 or stepped surface on the metal support protruding portion 1422. The side of the metal support protruding portion 1422 is joined to the side wall of the opening of the insulating protruding portion 1412 through a dovetail-shaped or stepped structure, which can improve the firmness of the joint.

[0052] The metal bracket retaining portion 1421 has at least one side wall with a dovetail-shaped or T-shaped protruding retaining edge 14212.

[0053] The metal bracket ejection portion 1422, on the side away from the insulating main body 1411, uses multiple guide surfaces—either an arc-shaped guide surface, a chamfered inclined guide surface, or an arc surface connected to the inclined surface 14221—to press against the bottom surface of the electronic card inside the card edge connector, thus ejecting the electronic card. The edge of the metal bracket ejection portion 1422, with its multiple guide surfaces (arc-shaped guide surfaces, chamfered inclined guide surfaces, or arc surfaces connected to the inclined surface 14221) contacting the bottom surface of the electronic card, prevents damage to the bottom surface and reduces friction.

[0054] The protruding surface 14121 of the insulating protruding part 1412 is a stepped surface with a higher height on the side closer to the insulating main body 1411 than on the side farther from the insulating main body 1411. The end face of the metal bracket protruding part 1422 is horizontally aligned and connected to the side of the protruding surface 14121 of the insulating protruding part 1412 that is closer to the insulating main body 1411. In this way, only a small part of the metal bracket protruding part 1422 is exposed, which can prevent it from contacting the internal terminals of the snap-fit ​​connector and causing a short circuit.

[0055] The movable locking insulator 141, on its outer side wall facing away from the electronic card, is also provided with a through hole for the metal support strip 4 that communicates with the metal support receiving cavity. A connecting rib 143 for the strip 4 is formed on the side wall of the metal support holding portion 1421 of the movable locking metal support 142, and the connecting rib 143 for the strip 4 is accommodated within the through hole of the metal support strip 4. This improves production efficiency and facilitates the assembly of the card edge connector.

[0056] A method for manufacturing a structurally reinforced snap-lock connector movable latch includes the following steps:

[0057] Step 1: The movable locking metal bracket 142 coil is formed by stamping and bending using a metal progressive die. The movable locking metal bracket 142 on the coil is connected to the material strip 4 via connecting ribs 143. L-shaped connecting pieces 5 are evenly spaced on the material strip 4. One side wall of the L-shaped connecting piece 5 is on the same plane as the material strip 4. The connecting ribs 143 are located on one side wall of the L-shaped connecting piece 5. A pre-cut structure 1431 is formed on the connecting ribs 143.

[0058] Step 2: Cut the roll of movable locking metal bracket 142 to a fixed length to form a fixed length sheet. Each sheet has a certain number of movable locking metal brackets 142 spaced apart on the strip 4.

[0059] Step 3: Place the fixed-length sheet into the mold cavity of the injection mold, and fix and position it with the mold cavity through the material strip 4 of the fixed-length sheet. The positioning hole on the material strip 4 can be used to position the material strip 4 in the mold cavity of the injection mold. After positioning, the movable locking metal bracket 142 is suspended, which facilitates the plastic to wrap the movable locking metal bracket 142.

[0060] Step 4: Injection molding is performed by closing the mold and forming multiple movable latches connected to the material strip 4;

[0061] Step 5: Break the connecting rib 143 of the material strip 4 exposed on the outside of the movable lock insulator 141 of each movable lock, so that the metal bracket 142 of the movable lock is separated from the material strip 4.

Claims

1. A structurally reinforced snap-lock for a snap-lock connector, comprising a snap-lock insulator (141), said snap-lock insulator including an insulating body portion (1411) hinged to the snap-lock connector and an insulating ejector portion (1412) extending into a slot of the snap-lock connector, characterized in that: The inner side of the movable latch insulator has a metal bracket receiving cavity. An opening communicating with the metal bracket receiving cavity is formed on the ejection surface (14121) of the insulator facing the electronic card. A movable latch metal bracket (142) is also provided. The movable latch metal bracket includes a metal bracket holding part (1421) and a metal bracket ejection part (1422) fixed on the metal bracket holding part. The metal bracket holding part is fixedly installed in the metal bracket receiving cavity. The metal bracket ejection part extends through the opening to a set height position outside the ejection surface of the insulator ejection part. The metal bracket ejection part can contact the bottom surface of the electronic card inserted into the card edge connector to eject it from the card edge connector.

2. The reinforced snap-lock connector with movable locking mechanism according to claim 1, characterized in that: The metal bracket receiving cavity has an L-shaped structure, with one end extending inside the insulating main body and the other end extending inside the insulating ejection part. The metal bracket holding part of the movable locking metal bracket has an L-shaped structure that matches the metal bracket receiving cavity, with one end located inside the insulating main body and the other end inside the insulating ejection part. The metal bracket ejection part is integrally formed on the surface of the other end of the metal bracket holding part, and the root of the metal bracket ejection part is tightly inserted into the opening of the insulating ejection part.

3. The reinforced snap-lock connector with movable locking mechanism according to claim 1 or 2, characterized in that: The metal bracket retaining part is provided with at least one retaining hole (14211), and the metal bracket receiving cavity is formed with a retaining post (14131) tightly inserted into the retaining hole. The two ends of the retaining post are fixedly connected to the inner sidewall of the metal bracket receiving cavity to form an integral structure.

4. The reinforced snap-lock connector with movable locking mechanism according to claim 3, characterized in that: The metal bracket holding part of the movable locking metal bracket is integrally formed in the metal bracket receiving cavity inside the movable locking insulator by in-mold injection molding.

5. The reinforced snap-lock connector with movable locking mechanism according to claim 4, characterized in that: The metal bracket protrusion has an inclined surface (14221) or a stepped surface with an end size larger than the root size on the side near the insulating body. The opening of the insulating protrusion has an inclined surface or stepped groove on the side wall near the insulating body that matches the inclined surface or stepped surface of the metal bracket protrusion.

6. The reinforced snap-lock connector with movable locking mechanism according to claim 4, characterized in that: The metal bracket retaining portion has at least one side wall with a dovetail or T-shaped protruding retaining edge (14212).

7. The reinforced snap-lock connector with movable locking mechanism according to claim 1, characterized in that: The metal bracket ejection part, on the side away from the insulating main body, uses multiple guide surfaces, formed by an arc-shaped guide surface, a chamfered inclined guide surface, or an arc surface and an inclined surface, to press against the bottom surface of the electronic card inside the card edge connector, thus ejecting the electronic card.

8. The reinforced snap-lock connector latch according to claim 7, characterized in that: The protruding surface of the insulating protruding part is a stepped surface with a higher height on the side closer to the insulating main body than on the side farther from the insulating main body. The end face of the metal bracket protruding part is horizontally aligned and connected with the protruding surface of the insulating protruding part on the side closer to the insulating main body.

9. The reinforced snap-lock connector with movable locking mechanism according to claim 1, characterized in that: The movable latch insulator is also provided with a metal bracket material strip through hole on the outer side wall facing away from the electronic card, which communicates with the metal bracket receiving cavity. A material strip connecting rib (143) is formed on the side wall of the metal bracket holding part of the movable latch metal bracket, and the material strip connecting rib is accommodated in the material strip through hole of the metal bracket.

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