Card edge connector with self-locking function

Abstract

The utility model relates to a card edge connector with a self-locking function, the front end of an insulating main body is provided with a sectioned card slot, and the card slot is adaptive to the thickness of a PCB plug-in card; the plurality of conductive terminals are arranged on two sides of the clamping groove in an array manner; the shell wraps the periphery of the insulating main body, the shell is provided with elastic pieces which are located on the two sides of the clamping groove and partially extend into the clamping groove, the elastic pieces are provided with lock catches, and the elastic pieces drive the lock catches to be clamped into the grooves in the edge of the PCB plug-in card to form axial limiting when the PCB plug-in card is completely plugged in. According to the utility model, the elastic piece with the lock catch is directly arranged on the shell, and when the PCB plug-in card is completely inserted, the lock catch is driven to be clamped into the groove at the end part of the PCB plug-in card to form axial limiting, so that self-locking is realized, the PCB plug-in card is prevented from falling off from the connector, and the connector can be applied to a vibration environment; when the PCB plug-in card needs to be pulled out, the PCB plug-in card can be pulled out by pressing the elastic piece. The connector is simple in structure, convenient to manufacture and assemble, stable and reliable in structure, and the practicability of the connector is improved.

Description

Technical Field

[0001] This utility model relates to an electronic component, and more particularly to a self-locking edge connector for applications where vibration may occur. Background Technology

[0002] With the rapid development of computer and communication equipment, industrial control automation systems and mobile terminal devices, the card edge connector, as a core interconnection component between memory modules and motherboards, directly affects the stability of data transmission.

[0003] Currently, the connection stability between connectors and PCB cards on the market is designed under the assumption that the insulating body will not shake or vibrate. Therefore, the stability of the connection is not considered as a strong force influencing factor in the design. Instead, the connection stability is achieved by relying more on the friction of the components themselves when the two are connected. As a result, when the insulating body shakes or vibrates, it is easy to cause problems such as data loss due to connection failure between the PCB card and the connector. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a card edge connector with a self-locking function.

[0005] This utility model is achieved through the following technical solution:

[0006] A self-locking edge connector, comprising:

[0007] An insulating body, the front end of which is provided with a slit-shaped slot that is adapted to the thickness of the PCB insert card;

[0008] Several conductive terminals are arranged in an array on both sides of the slot;

[0009] The outer shell is wrapped around the outer periphery of the insulating body, and elastic elements are provided on the outer shell, located on both sides of the card slot and partially extending into the card slot. The elastic elements are provided with latches. When the PCB card is fully inserted, the elastic elements drive the latches to engage with the grooves on the edge of the PCB card to form an axial limit.

[0010] The above-mentioned solution is further described as follows: the insulating body is a vertical structure and includes a first tower and a second tower superimposed on the first tower; the slot is cut downward from the upper end of the second tower and extends out from both sides of the second tower; the outer shell covers the outer periphery of the second tower and has harpoon feet extending out from the first tower; the elastic element extends into the slot from both sides of the second tower.

[0011] The above solution further includes an elastic element that is a stamped structure integrally formed with the outer shell. The elastic element also has a pressing part, which is used to drive the latch to unlock by pressing the pressing part, so that the latch exits the groove at the end of the PCB card.

[0012] A further improvement of the above scheme is that the first tower section is provided with a positioning groove adapted to the harpoon foot positioning setting.

[0013] A further improvement in the above scheme is that the bottom of the first tower section is provided with a foolproof positioning post.

[0014] Furthermore, the above solution includes raised limiting strips on both sides of the port extending from the two sides of the second tower, which are used to tightly fit with the PCB insert card.

[0015] The above solution further includes two anti-foolproof positioning posts, which are respectively located near the far ends of the bottom of the connector, one being a cylindrical anti-foolproof positioning post and the other being an elliptical cylindrical anti-foolproof positioning post.

[0016] This invention directly incorporates a locking elastic element on the outer shell. When the PCB insert is fully inserted, the locking element engages with the groove at the end of the PCB insert, creating an axial limit and achieving self-locking to prevent the PCB insert from detaching from the connector. This design allows for use in vibrating environments. When the PCB insert needs to be removed, simply press the elastic element to pull it out. The structure is simple, easy to manufacture and assemble, and stable and reliable, enhancing the connector's practicality. Attached Figure Description

[0017] Appendix Figure 1 —Schematic diagram of the three-dimensional structure of this embodiment

[0018] Appendix Figure 2 —Cross-sectional view of this embodiment

[0019] Appendix Figure 3 —Schematic diagram of the three-dimensional structure of the outer shell in this embodiment

[0020] Appendix Figure 4 —Schematic diagram of the three-dimensional structure of the connector body in this embodiment

[0021] Appendix Figure 5 —Bottom view of the connector body in this embodiment

[0022] 1—Insulating body; 11—Slot; 12—Limiting protrusion; 13—Cylindrical anti-foolproof positioning post; 14—Elliptical cylindrical anti-foolproof positioning post; 15—First tower section; 16—Second tower section; 151—Positioning groove;

[0023] 2—Outer shell;

[0024] 21—Elastic element; 211—Lock; 212—Pressing part; 22—Harpoon foot;

[0025] 3—Conductive terminal;

[0026] 4 – PCB insert card; 41 – Groove. Detailed Implementation

[0027] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model.

[0028] It should be noted that in the description of this utility model, terms such as "top", "bottom", "left", "right", and "inner" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. This is merely for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0029] like Figure 1 , 2 As shown in Figures 3, 4, and 5, a self-locking edge connector includes an insulating body 1, a housing 2, and conductive terminals 3. The front end of the insulating body has a slit-shaped slot 11, which adapts to the thickness of a PCB insert card 4. Several conductive terminals 3 are arrayed on both sides of the slot so that the PCB insert card 4 can be electrically connected to the conductive terminals 3 after being inserted into the slot 11, thus satisfying data signal transmission. The housing 2 wraps around the outer periphery of the insulating body 1 and has elastic members 21 located on both sides of the slot and partially extending into it. The elastic members have latches 211, which drive the latches to engage with the grooves 41 on the edge of the PCB insert card when the PCB insert card 4 is fully inserted, forming an axial limit.

[0030] Figure 1 , 2As shown in Figures 3, 4, and 5, in this embodiment, the insulating body 1 is a vertical structure including a first tower 15 and a second tower 16 superimposed on the first tower. The slot 11 is a downward cut structure from the upper end of the second tower 16, and the slot 11 extends out from both sides of the second tower 16 to form a port, which facilitates the alignment and assembly of the elastic element and realizes the locking function. The outer shell 2 covers the outer periphery of the second tower, and the outer shell has a harpoon leg 22 extending from the first tower. In this embodiment, the harpoon leg 22 is used for welding connection with the PCB board to increase the holding force and improve the stability of the connector product during installation and use. The elastic element 21 extends into the slot from both sides of the second tower. In this embodiment, the elastic element 21 is a stamped structure integrally constructed with the outer shell 2. The elastic element also has a pressing part 212, which protrudes in opposite directions with the latch 211 and forms a seesaw shape so that pressing the pressing part can drive the latch to unlock, causing the latch to exit the groove 41 at the end of the PCB insert card.

[0031] In this embodiment, the first tower portion 15 is provided with a positioning groove 151 adapted to the harpoon leg positioning setting. The positioning groove 151 has a concave structure, which facilitates the pressing and positioning of the harpoon leg 22 and allows the harpoon leg 22 to extend vertically downward. The harpoon leg 22 extends from the bottom of the first tower portion for upper plate welding. At the bottom of the first tower portion, there are also two anti-foolproof positioning posts, respectively located at the bottom two ends of the first tower portion. One is a cylindrical anti-foolproof positioning post 13, and the other is an elliptical cylindrical anti-foolproof positioning post 14. The two anti-foolproof positioning posts have different shapes and positions, which can ensure the product's anti-foolproof function during assembly with the PCB board and increase the structural integrity of the connection between the connector and the PCB board.

[0032] In this embodiment, the card slot 21 is also provided with protruding limiting strips 12 on both sides of the port extending from both sides of the second tower. The two limiting strips 12 are vertically arranged and form a clamping shape. When the PCB card 4 is inserted for use, the two limiting strips 12 are tightly fitted with the PCB card and form a clamping effect, further preventing the PCB card from swinging left and right in the connector and ensuring the contact stability between the PCB card and the connector.

[0033] This invention directly incorporates a locking elastic element on the outer shell. When the PCB insert is fully inserted, the locking element engages with the groove at the end of the PCB insert, creating an axial limit and achieving self-locking to prevent the PCB insert from detaching from the connector. This design allows for use in vibrating environments. When the PCB insert needs to be removed, simply press the elastic element to pull it out. The structure is simple, easy to manufacture and assemble, and stable and reliable, enhancing the connector's practicality.

[0034] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.

Claims

1. A card edge connector with self-locking function, characterized in that: include: An insulating body, the front end of which is provided with a slit-shaped slot that is adapted to the thickness of the PCB insert card; Several conductive terminals are arranged in an array on both sides of the slot; The outer shell is wrapped around the outer periphery of the insulating body, and elastic elements are provided on the outer shell, located on both sides of the card slot and partially extending into the card slot. The elastic elements are provided with latches. When the PCB card is fully inserted, the elastic elements drive the latches to engage with the grooves on the edge of the PCB card to form an axial limit.

2. A self-locking edge connector according to claim 1, characterized in that: The insulating body is a vertical structure and includes a first tower and a second tower superimposed on the first tower. The slot is cut downward from the upper end of the second tower and extends out from both sides of the second tower. The outer shell covers the outer periphery of the second tower and has harpoon feet extending out from the first tower. The locking mechanism of the elastic element extends into the slot from both sides of the second tower.

3. A self-locking edge connector according to claim 1 or 2, characterized in that: The elastic element is a stamped structure integrally constructed with the outer shell. The elastic element also has a pressing part. By pressing the pressing part, the latch is unlocked, causing the latch to exit the groove at the end of the PCB card.

4. A self-locking edge connector according to claim 2, characterized in that: The first tower section is provided with a positioning groove adapted to the harpoon foot positioning setting.

5. A self-locking edge connector according to claim 2, characterized in that: The bottom of the first tower section is equipped with a foolproof positioning post.

6. A self-locking edge connector according to claim 2, characterized in that: The card slot is provided with raised limiting strips on both sides of the port extending from both sides of the second tower, which are used to tightly fit with the PCB insert card.

7. A self-locking edge connector according to claim 5, characterized in that: There are two foolproof positioning posts, which are respectively located near the far end of the bottom of the connector. One is a cylindrical foolproof positioning post and the other is an elliptical cylindrical foolproof positioning post.

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